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Introduction:

Touch screen technology was invented by Jason Ford and Doctor Sam Hurst of Elo TouchSystems.
A touchscreen is an electronic visual display that can detect the presence and location of a touch within the display area. The term generally refers to touching the display of the device with a finger or hand. Touchscreens can also sense other passive objects, such as a stylus. However, if the object sensed is active, as with a light pen, the term touchscreen is generally not applicable.
The touchscreen has two main attributes. First, it enables one to interact directly with what is displayed, rather than indirectly with a cursor controlled by a mouse or touchpad. Secondly, it lets one do so without requiring any intermediate device that would need to be held in the hand. Such displays can be attached to computers, or to networks as terminals. They also play a prominent role in the design of digital appliances such as the personal digital assistant (PDA), satellite navigation devices, mobile phones, and video games.

Types:
Several types of Touch Screen technologies are available. Some of the basic and widely used ones are:
A basic touchscreen has three main components: a touch sensor, a controller, and a software driver. The touchscreen is an input device, so it needs to be combined with a display and a PC or other device to make a complete touch input system. 




1. Touch Sensor
A touch screen sensor is a clear glass panel with a touch responsive surface. The touch sensor/panel is placed over a display screen so that the responsive area of the panel covers the viewable area of the video screen. There are several different touch sensor technologies on the market today, each using a different method to detect touch input. The sensor generally has an electrical current or signal going through it and touching the screen causes a voltage or signal change. This voltage change is used to determine the location of the touch to the screen.

2. Controller
The controller is a small PC card that connects between the touch sensor and the PC. It takes information from the touch sensor and translates it into information that PC can understand. The controller is usually installed inside the monitor for integrated monitors or it is housed in a plastic case for external touch add-ons/overlays. The controller determines what type of interface/connection you will need on the PC. Integrated touch monitors will have an extra cable connection on the back for the touchscreen. Controllers are available that can connect to a Serial/COM port (PC) or to a USB port (PC or Macintosh). Specialized controllers are also available that work with DVD players and other devices.

3. Software Driver
The driver is a software update for the PC system that allows the touchscreen and computer to work together. It tells the computer's operating system how to interpret the touch event information that is sent from the controller. Most touch screen drivers today are a mouse-emulation type driver. This makes touching the screen the same as clicking your mouse at the same location on the screen. This allows the touchscreen to work with existing software and allows new applications to be developed without the need for touchscreen specific programming. Some equipment such as thin client terminals, DVD players, and specialized computer systems either do not use software drivers or they have their own built-in touch screen driver. 


 
Touchscreens As Input Device:

All of the touchscreens that we offer basically work like a mouse. Once the software driver for the touchscreen is installed, the touchscreen emulates mouse functions. Touching the screen is basically the same as clicking your mouse at the same point at the screen. When you touch the touchscreen, the mouse cursor will move to that point and make a mouse click. You can tap the screen twice to perform a double-click, and you can also drag your finger across the touchscreen to perform drag-and-drops. The touchscreens will normally emulate left mouse clicks. Through software, you can also switch the touchscreen to perform right mouse clicks instead.

 
 Because of its simplicity and efficient working, it is undoubtedly one of the best technologies of future!






7. The Most Serious Breach 

Target: U.S. military computer network

Attacker: “Foreign intelligence agency” (unspecified)

Damages: A cyber attack can come in any shape or size ,digitally or physically, and one of the worst on an American network happened in 2008. Did it involve thousands of zombie machines and the muscle of a national telecom giant? Nope, you could have held it in the palm of your own hand: a corrupt flash drive. Inserted into a military laptop in the Middle East & According to Deputy Secretary of Defense William Lynn:

the malicious code on the drive created a digital beachhead, from which data could be transferred to servers under foreign control.”
The attack acted as another reality check in security, and prompted the Pentagon to form a special cyber military command.

6. The Original Logic Bomb

Target: Siberian gas pipeline in Soviet Russia
Attacker: U.S. Central Intelligence Agency
Damages: One of the scariest implications of cyberwarfare is that the damage isn’t always limited to networks and systems. It can get physical, too. In 1982, the CIA showed just how dangerous can be a “Logic Bomb” which is a piece of code that changes the workings of a system and can cause it to go crazy. The agency caused a Soviet gas pipeline in Siberia to explode in what was described by an air force secretary as “the most monumental non-nuclear explosion and fire ever seen from space,” without using a missile or bomb, but a string of computer code.
Today, with the proliferation of computer control, the possible targets are virtually endless.

5. China’s 750,000 American Zombies

Target: U.S. computer networks, all levels
Attacker: Chinese hackers (Government-supported, organized crime related, cyber gangs)
Damages: The worst fallout from a cyberattack can be what it leaves behind, such as malicious software that can be activated later. That, compounded with ongoing efforts by hackers to infect as many machines as possible using bogus email offers, harmful website code and what-have-you can leave a lot of “zombified” machines. Those machines can then be made into cyber weapons, which can overload a network, website or other machine with a deluge of data known as a DDoS, or distributed denial of service attack. Even back in 2007, former senior U.S. information security official Paul Strassmann (pictured above) estimated that there were over 730,000 computers “infested by Chinese zombies.

4. Presidential-Level Espionage


Target: Obama, McCain presidential campaigns
Attacker: China or Russia (Suspected)
Damages: No one wants to get a message from the FBI saying, “You have a problem way bigger than what you understand,” but that’s exactly what happened to both Obama and McCain during their run for the 2008 presidency. What was first thought of as simple cyberattacks on the computers used by both campaigns was discovered to be a more concentrated effort from a “foreign source” that accessed emails and sensitive data. The FBI and secret service swooped in and confiscated all computers, phones and electronics from the campaigns and with the kind of stuff that gets dug up on the campaign trail, there are probably plenty of folks hoping the FBI keeps them.

3. The Estonian Cyberwar

Target: Estonia
Attacker: The Nashi, a pro-Kremlin youth group in Transnistria
Damages: What happened to Estonia in 2007 is considered a model of how vulnerable a nation can be to cyberattacks during a conflict. In a very brief period of time, a variety of methods were used to take down key government websites, news sites and generally flooded the Estonian network to a point that it was useless. The attack is one of the largest after Titan Rain, and was so complex that it’s thought that the attackers must have gotten support from the Russian government and large telecom companies. Pictured above is the Bronze Soldier of Tallinn, an important icon to the Russian people and the relocation of which played a part in triggering the attacks.

2. Moonlight Maze


Target: Military maps and schematics, U.S. troop configurations
Attacker: Russia (Denies involvement)
Damages: Moonlight Maze represents an operation in which hackers penetrated American computer systems and could pretty much raid at will. It’s also one of the earlier major cyber infiltrations that we know of, starting in 1998 and continuing on for two whole years as military data was plundered from the Pentagon, NASA, the Department of Energy and even from universities and research labs.

1. Titan Rain

Target: U.S. military intel
Attacker: China
Damages: In 2004, a Sandia National Laboratories employee, Shawn Carpenter (pictured above), discovered a series of large “cyber raids” carried out by what is believed were government-supported cells in China. “Titan Rain” is the name given to these attacks by the FBI, and it was found that several sensitive computer networks were infiltrated by the hackers, such as those at Lockheed Martin and Sandia (owned by Lockheed), but also at the likes of NASA. The danger here is not only can the attackers make off with military intelligence and classified data; they can also leave backdoors and “zombify” machines that make future cyber espionage easier. Titan Rain is considered one of the largest cyberattacks in history.





Before smartphones took away keyboards and replaced them with slick touchscreens,T9 was the king of software on mobile devices.The predictive text entry method changed how people composed messages and allowed us to type faster than ever on tiny keyboards.
It gave us a glimpse into a world where phones would not just help people talk to each other from anywhere but also allow e-mail and act as instant messaging devices.
Last week, Martin King, 60, one of the inventors behind the T9 input method passed away in Seattle after a five-year battle with cancer.
The T9 idea came at a time when text messaging was just taking off. But typing these messages on a tiny keyboards crammed with just a few keys proved to be painful.
T9 or Text on 9 Keys, changed that. It allowed users to enter words by pressing a single key for each letter. Earlier systems had multiple letters associated with each key and users had to select one of them, requiring two or more taps on the phone keyboard.
T9 also combined groups of letter on each phone key with a dictionary ordered by the frequency of the use of the word. This let users type faster by throwing up words they used most frequently first and then letting them access other choices with the press of a key.
Users could also manually add words to be integrated into the T9 software. (Read this amazingly detailed article on how T9 was born and how it took off.)
T9 transformed how users interacted with their mobile phones. It took people beyond just voice calls on mobile phones, giving them the ability to type out short messages and longer emails. In fact, T9 became so popular and widespread it is still around today.
T9 was born out of the work that King and his co-founder Cliff Kushler did in developing products for people with disabilities. King had developed an eye-tracking communications device that would lay the foundation for his company called Tegic Communications in 1995.
As part of their work for the eye tracking device, King and Kushler looked at the most efficient way to input text using only a few eye positions. That research became the groundwork for a new kind of text input method called T9.
Tegic was sold to AOL in 1999 for $350 million and in 2007 Nuance Communications purchased the company.
In its beautiful tribute to King, the Techflash blog talks about how King tried to solve problems:
King had an uncanny ability to look at problems from various angles, discovering new ways to solve complex issues, recalled Mason Boswell, a Seattle patent attorney who worked closely with the inventor.
"He would often ask questions that connected two fields in a way I had not thought of but that clearly pointed the way to interesting innovation," said Boswell. "He also had a point of view five to 10 years into the future, thinking about devices in a way that transcended current hardware limitations and going more to what could be common down the road."
King was diagnosed with cancer five years ago. But it didn't stop him from starting a new company called Exbiblio.  His co-founder at Tegic, Kushler is now part of a company called Swype that is changing text entry on touchscreen phones.
About four billion phones worldwide still use T9 software.


at 11:31 AM Article by Unknown 1 Comment

A supercomputer is a computer that performs at or near the currently highest operational rate for computers.


10. SGI Altix ICE 8200EX
The SGI Altix system in Pau, France, has a capacity of 106.1 teraflops (one teraflop = one trillion operations per second). This supercomputer is run by Total Exploration Production and is the largest system housed with an industrial customer, according to Top500.org. Total is a gas and oil company that uses its supercomputer to do seismic depth imaging in order to locate underground hydrocarbon reservoirs. The company reports that the massive heat from the computer is being used to warm some of the building at the center.

9. BlueGene/P at IDRIS
The BlueGene/P Solution system at the Institut du Développement et des Ressources en Informatique Scientifique in Orsay, France, is just one of many IBM systems on the list. IDRIS works in partnership with another supercomputer center in Montpellier to offer its capabilities to the national scientific community.

8. EKA
This is the second year a supercomputer in India has broken the top 10. EKA, which means number one in Sanskrit, runs on a Hewlett-Packard system at Computational Research Laboratories, a subsidiary of Tata Sons in Pune, India. Tata Group is the largest conglomerate in India, bringing in $55 billion annually. CRL is focused entirely on high-performance computing. EKA's power makes it ideal for molecular simulations, fluid dynamics computations and crash simulations.

7. Encanto 
This system, at the New Mexico Computing Applications Center (NMCAC) in Rio Rancho, New Mexico, was built by SGI. According to an article in the United Kingdom's Register earlier this year, Encanto was being housed at an Intel facility (Intel made most of the processors in the Top500 list). Apparently, politicians in New Mexico are considering making the 133.2 teraflops supercomputer available for businesses and academic institutions to rent.

6. JUGENE
This computer, at the Jülich Research Centre (FZJ for short in German), in Nordrhein-Westfalen, Germany is yet another that runs on IBM's BlueGene system. Back in the day, Jülich had three nuclear reactors for research, but they have all since been closed. Now the center has shifted its focus to broader scientific subjects and is participating in several grid computing projects in the European Union.

5. Jaguar
The Jaguar supercomputer at Oak Ridge National Laboratory in Oak Ridge, Tenn., was built by Cray. If the name sounds familiar, that's because Seymour Cray dominated the computing world from the 1960s through the 1980s. His Cray-2 was the fastest computer in the world for four years in the '80s. Earlier this month, Jaguar got a makeover, upping its speed to 260 teraflops. Like many other supercomputers on the list, Jaguar is used to conduct a variety of security and scientific research.

4. Ranger 
Unlike the other supercomputers at the top of this list, Ranger is a system intended to be open. Sun Microsystems worked with the Texas Advanced Computing Center at the University of Texas and a team of academic institutions to build Ranger, which has one-half a petaflop (the next step up from teraflop) capacity. Researchers at academic institutions in the United States whose hearts beat faster at the possibility of crunching "parallel algorithms" and doing "scalable visualization," can submit proposals to have the system run their numbers.

3. BlueGene/P at Argonne
Another Big Blue system is the BlueGene/P at Argonne National Laboratory in Argonne, Ill. Argonne, along with Los Alamos, Oak Ridge, and Lawrence Berkeley, was part of the Manhattan Project, which developed the nuclear bomb in the 1940s. It's the first national laboratory in the country and one of the largest. Argonne still conducts nuclear research, but is also conducting research in environmental management, energy resources, and a variety of scientific fields.

2. BlueGene/L
IBM's BlueGene/L system at Lawrence Livermore National Laboratory in Livermore, Calif., is nothing to sneeze at. It can do 478.2 trillion operations in a second, which it does in collaboration with Los Alamos and Sandia. BlueGene/L can run nuclear computer simulations, replacing underground testing. Thankfully.

1. Roadrunner 
Earlier this month, Roadrunner became the first computer ever to reach the one petaflop per second level. Translation: it can do one thousand trillion calculations in the blink of an eye. That's 15 zeroes. That's so fast, even analogies can't touch it. Roadrunner, named after New Mexico's state bird, is operated by Los Alamos National Laboratory. IBM designed and built the record-breaking system, which will be used to do energy, astronomy, climate, human genome research, and to keep the nation's nuclear stockpile safe. Beep-beep.


Familiar with HTML?!!(Hyper Text Markup Language)
Well, here is FBML....(Face Book Markup Language)


Adding Static FBML Application to Your Facebook Fan Page allows your page to become more fully functional, appearing more like your blog or a web page.
It’s easy to do and something necessary if you wish to include images, YouTube videos, or opt-in forms on your page.
Following these steps you’ll find it’s very easy to add, and add them now because soon Facebook will not allow new pages to be added with FBML.
  1. On your Fan page, click ‘Edit Page’
  2. In the list, you may or may not see ‘Static FBML’, but if not, scroll down to ‘More Applications’ and look for it there. If you do not see it, then select ‘Browse more’.
  3. Click on ‘Static FBML’ and go to the application’s page where you can select ‘Add to my page’ from the left column (if you administer more than one page you will get a list from which you have to select the page).
  4. Click ‘Close’.

Editing the FBML Tab

Now that you have added the application, in the ‘Edit Page’ menu you will see an ‘FBML – FBML’ entry. Click ‘Edit’ for this entry and then add the Title which will appear on the Tab (Boxes will be going away soon).
In the content field you can paste almost any HTML including Forms from your auto-responder, CSS,  and images.
Do not set the width of any image or item greater than 520 pixels, which  is the maximum for FBML application tabs.
Click ‘Save Changes’ when you are finished.

Making the FBML Tab Public

Going back to the ‘Edit Page’ menu, find the FBML application by your given title in the previous step, and select ‘Application Settings’ this time.
Next to the ‘Tab’ option, click on ‘Add’. If it only has ‘Remove’ as an option, then it has already been added.

Adding More Static FBML Applications

At the bottom of your existing FBML edit windows you will see ‘Add another FBML box’, under the ‘Save’ / ‘Cancel’ buttons. There is a limit but I’m not sure how many you can create before this link would disappear.

Warning: Add your Static FBML Soon, Facebook is Changing Again!

Facebook is going to do away with static FBML and move to iFrames, which is an HTML element that uses javascript. According to Facebook, “By the end of this year, we will no longer allow new FBML applications to be created, so all new canvas applications and Page tabs will have to be based on IFrames and our JavaScript SDK. We will, however, continue to support existing implementations of the older authentication mechanism as well as FBML on Page tabs and applications. [Emphasis added.]“.
So anyone that is thinking of adding the static FBML should do so now, so that Facebook may allow those existing FBML tabs to keep them after the change.
To add more functionality for your fan page by including your blog’s feed, check out Adding Your Blog RSS Feed to Your Facebook Fan Page.
And as long as you do it soon, adding static FBML to your Facebook Fan page is easy and allows a great amount of flexibility in creating an attractive Facebook fan page!

 

Search Engine Optimization


Everybody in this world want their website or blogs to appear on the first page of search engines. Well, why not? After all they are here for marketing or provide information about something. Before I answer what is Search Engine Optimization, let me introduce what is a search engine first of all. A search engine is a Web server which contains links to various websites across the world, Google, Yahoo, Bing, Ask, Kosmix etc for example. Whenever a user wants to access some Website (when the exact URL is unknown), he enters a set of related words and the search engine displays related links to the user. Now, these words are called Keywords.


What is Search Engine Optimization(SEO)?

        To put it in simple words, let me give you an example. Suppose I create a Website regarding e-Commerce, just like amazon.com, flipkart.com, etc. During initial stages, neither my Website nor my company is well known to the customers. When the question of publicizing the Website comes up, Search Engine Optimization is of great help. If my Website is completely Search Engine Optimized, links to my Website appear in first page of the search engines.
Search engine optimization (SEO) is the process of improving the visibility of a web site or a web page in search engines via the "natural" or un-paid ("organic" or "algorithmic") search results.
       In other words, SEO is used to increase the page rank of a Website. Higher the page rank, probability of my website appearing in the first page of search engine is higher. This in turn, is proportional to the number of users visiting my website. It plays a vital role in Internet marketing.


How SEO works?

       The operations of SEO is based on certain rules. If the Webmaster follow these rules while creating the Website, rest of the work will be done by search engines.
Some of the rules are:

1. Home page and other landing pages of the Website must contain a 'title tag' which describes the website. This title tag is what we see when we search for some links in search engines. They appear on top of the browser when it is opened.
2. The description of each and every page must be specific. This description is called 'meta description' and this is what we see below the links displayed in search engines. Description is small paragraph that describes the content of the page.
3. Description and title tag must contain maximum but meaningful use of Keywords.
4. The content of the webpage must contain these Keywords in excess.
5. Link building is one of the popular methods, where in, appropriate links to other websites are provided from one site to another(external links), or within the site from one page to another(internal links).
6. Each page of a website shall have a unique URL.

There are many such rules to increase the page rank and hence the traffic of a Website. However, the above set of rules are mandatory.


First of all, the search engines must be made to crawl through our website. For this, we need to submit our sitemap to all the search engines. Google provides a handy tool called Webmasters for this, Yahoo and Bing can directly receive the URL and place in its directory. Search Engines might take some time to crawl through your website.

Google provides a tool called Google Adwords to analyze which keywords are being used by the users to enter my site. Being a good Webmaster, you can use the word which is most frequently used and place it in the title tag. This increases the popularity of you website.

SEO

After all this optimizations, you can verify the increase in the number of visitors to your website by using Google Analytics, again a Google tool to analyze where the traffic is coming from, how many users visited, how long they stayed back in your website etc. Also there are many websites for this type of analysis, for example, Alexa, Trafficwala etc.

Nowadays, SEO marketing is very useful and it is obviously used in almost all websites. However, all these pages does not appear on the first page. The reason for this is, search engine uses a complex algorithms to decide which website should be placed higher and which one to be lower.

For more information, click here.



Facebook is currently the top ranked Website in the world. Popularity of Facebook, in short FB, has made friends, students, officials, marketing managers, advertisers, turn towards Facebook to serve their individual purpose. In fact, Facebook has overtaken Google as the most popular Website recently, with a better page rank as well. It currently has over 350 million users across the Globe!
 
  • What is Facebook?
          Facebook is a social networking site through which members who has a profile on FB can link together and share information. Nowadays, FB is being used as educative, informative, advertising, marketing,  networking, recreation, stay-in-contact, campaigning etc. I guess you know more about Facebook than me!! Let me go on.


  • When and Why did the idea of FB arise?
          In 2004, Mark Zuckerberg, Dustin Moskovitz and Chris Hughes, three Harvard University students, launched a Web site designed to put students in touch with one another, share their photos and meet new people. They called it thefacebook.com, and before long the site became extremely popular on the Harvard campus. A month after the site launched, the creators expanded it to include students from Stanford, Columbia and Yale. By 2005, students in 800 college networks across the United States could join the network, and its membership grew to more than 5 million active users. In August of that year, the site's name changed to Facebook.com


  •  How Facebook works?
          Basically it has two ends: Front end and the back end.
Front end:
Facebook uses a variety of services, tools, and programming languages to make up its core infrastructure. At the front end, their servers run a LAMP (Linux, Apache, MySQL, and PHP) stack with Memcache.
Facebook runs the Linux Operating system on HTTP Apache servers. It uses a huge MYSQL database to store all the information and PHP to design Web interface and their operations. And Memcache is a memory caching system that is used to speed up dynamic database-driven websites (like Facebook) by caching data and objects in RAM to reduce reading time. Memcache is Facebook’s primary form of caching and helps alleviate the database load. Having a caching system allows Facebook to be as fast as it is at recalling your data. If it doesn’t have to go to the database it will just fetch your data from the cache based on your user ID.

Back end:
Facebook’s back end services are written in a variety of different programming languages including C++, Java, Python, and Erlang.
A list of all of Facebook’s open source developments can be found here. Some of the major ones are Thrift(protocol), Scrib(log server), Cassandra(database), HipHop for PHP.  Hiphop converts PHP to C++ program and Unix command 'g++' is used to compile the code. 


If you look past all of the features and innovations the main idea behind Facebook is really very basic—keeping people connected. Facebook realizes the power of social networking and is constantly innovating to keep their service the best in the business.

I hope this article was informative! Comments welcome!




Google Instant has revolutionized Google search, when it was released last Wednesday. Google Instant search involves a mechanism of Stream searching, in the sense, your Google search page will be continuously monitored by Google from the back end. It analyzes the words you type in, and suggest most popular keywords that you may intend to search for. In LESS TIME than EVER!!!!

Google Instant
Google claims it saves 2-5 seconds per search.

According to analysis, people take around 300 milliseconds between keystrokes. Using Google Instant can lower this time to 30 milliseconds, a Google prediction.

Even when you are not sure what you are searching for, Google suggests you some searches when you type a word and give a pause. Now, the time taken for this suggestions to line up will be much lesser in Google Instant. Also, if you are sure about what you want to search, you can type the exact phrase and hit 'Enter'. I mean to say, old system of search still works!

Experts feel Google Instant can save millions of hours spent in searching. Google Instant domains are installed in U.S, UK, France, Germany, Italy, Spain and Russia initially. However, other users can still use it by logging in to their Google Account and use Google Search. Sooner Google will adapt Instant domains across the Globe!

Try Google Instant by following this link.

Wikileaks is an International Organization, which reveals hidden secrets which had never gone public ever before.


Founder: Julian Assange
Location: Queensland,Australia
Founded: January 2007
Beginning: Julian found that Chinese were hacking the Tor Networks to gather confidential matters of government. So he came up with an idea of creating a dedicated domain to uphold the hidden secrets of the government.
Idea: Chinese eavesdroppers
Notable leaks: 
1. Apparent Somali Assassination order
2. Bank Julius Baer Lawsuit
3. U.S. Presidential Nominee Sarah Palin's Yahoo account hack
4. British National Party list
5. UN reports in 2009
6. Climatic Research Unit Emails
7. 9/11 Reports, Pager messages and Communicated messages
8. Afghan War Diary
9. Baghdad Airstrike Video
10. Joint Service Protocal 440 (JSP 440) of British Ministry of Defence

And the list goes on....
Another important thing to be noticed is Wikileaks also leaked the Intelligence Report prepared by US Defence against WIKILEAKS!!

Obviously, censor committee of various countries chose to block Wikileaks. Unfortunately, Wikileaks leaked the Censorship prepared against them as well.

Although Wikileaks was a head-ache to many countries, it became popular when it released millions of documents regarding 9/11 and Pentagon mishaps!

Wikileaks claims it has many more documents that it has in its repository, which will be released soon...

For more information, visit
Wikileaks


           At number 10, its T-Mobile MyTouch 3G Slide. Prices range upto $500.





At number 9, its Motorola Droid. Phone has a stunning 3.7 inches display and special Web Applications.



At number 8, its the Motorola Droid 2. It has some extra features compared to its predecessor. Prices range from $100 to $580.



At number 7, its Samsung Captivate, which has an amazing display and Social Networking features.



At number 6, it is Samsung Vibrant. It has a beautiful AMOLED display with all multimedia operations supported. Prices varies from $50 to $460.


Now, there comes Google with Google Nexus One at number 5. Nexus also has an eye-catching AMOLED display and multimedia features.

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