History of FacebookFacebook is an online social networking service headquartered in Menlo Park, California. Its website was launched on February 4, 2004, by Mark Zuckerberg with his Harvard College roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.The founders had initially limited the website's membership to Harvard students, but later expanded it to colleges in the Boston area, the Ivy League, and Stanford University. It gradually added support for students at various other universities and later to high-school students. Since 2006, anyone who is at least 13 years old was allowed to become a registered user of the website, though the age requirement may be higher depending on applicable local laws. Its name comes from a colloquialism for the directory given to it by American universities' students.

After registering to use the site, users can create a user profile, add other users as "friends", exchange messages, post status updates and photos, share videos and receive notifications when others update their profiles. Additionally, users may join common-interest user groups, organized by workplace, school or college, or other characteristics, and categorize their friends into lists such as "People From Work" or "Close Friends". Facebook had over 1.18 billion monthly active users as of August 2015. Because of the large volume of data users submit to the service, Facebook has come under scrutiny for their privacy policies. Facebook, Inc. held its initial public offering in February 2012 and began selling stock to the public three months later, reaching an original peak market capitalization of $104 billion. On July 13, 2015, Facebook became the fastest company in the Standard & Poor’s 500 Index to reach a market cap of $250 billion.

WEB 2.OWeb 2.0 is the term given to describe a second generation of the World Wide Web that is focused on the ability for people to collaborate and share information online. Web 2.0 basically refers to the transition from static HTML Web pages to a more dynamic Web that is more organized and is based on serving Web applications to users.Other improved functionality of Web 2.0 includes open communication with an emphasis on Web-based communities of users, and more open sharing of information. Over time Web 2.0 has been used more as a marketing term than a computer-science-based term. Blogs, wikis, and Web services are all seen as components of Web 2.0.Web 2.0 was previously used as a synonym for Semantic Web, but while the two are similar, they do not share precisely the same meaning.

Facebook As Web 2.O Facebook is educating the masses about web 2.0 without them even knowing. In other words, Facebook IS bringing web 2.0 mainstream. How is Facebook accomplishing such an improbable feat? By rebranding the terms and phrases that seem so daunting and sophisticated. This facilitates the education process and reduces the learning curve, making it easier for regular folk to adopt these technologies. The term “social network” is synonymous with web 2.0. Though the nature of the term may be rather self-explanatory, people understand it. Sites such as MySpace, hi5, and Friendster have helped to provide clarity around its meaning. This education process is exactly what is happening at Facebook as we speak. Let’s explore some of the web 2.0 technologies that Facebook has rebranded as internal features in the next slide;

Wikis By definition, a wiki is a collaborative space that can be edited by anyone with access to the site. This notion of participation and cooperation creates a more productive, usable information portal for all affiliated members.

Facebook has rebranded this concept as ‘Groups’. Within a given group, you are able to start a conversation (with a message), add photos, and provide simple commentary. Furthermore, administrators and officers have added control and functionality.

Blogs When a user writes a ‘Note’ on Facebook, they are expressing their thoughts or opinions in a given manner. A collection of these notes, in reverse chronological order, can be classified as a ‘weblog’ or blog.

The offline concept of a diary has been around for centuries. It doesn’t take a huge leap of faith to consider a jump into the online world.

User-Generated Content Once again, the term may seem rather self-explanatory, but it does need some clarification. UGC is content created by the user - it is not production quality. Examples include photos, videos, and audio clips.

Not only does Facebook upload an astonishing amount of photos each day, but they also provide a simple, yet powerful video experience. Simply put, users are constantly interacting with user-generated content. They just don’t know it. API An API is an Application Programming Interface. In other words, it is a way to let others integrate with your service by tapping into your data. This is what Facebook has done with their new ‘F8 Platform’. They’re allowing others the ability to tap into Facebook’s database and create applications which can then be added to the system and adopted by users.

During his F8, Mark Zuckerberg unveiled the next phase in Facebook Messenger: Messenger Platform. According to Zuckerberg, the app is now an ecosystem that can now be used to create and share content in line and independent of the News Feed

MicroBlogging

This new phenomenon is essentially a mini-form of blogging. Recently made popular by companies such as Twitter and Tumblr, micro-blogging is a way to provide a short message (usually less than 200 characters) about your life, mood, or current state via the web, e-mail, text, or IM. To meet demand in this area, Facebook launched ‘Status Updates’, which is simply another way of labelling micro-blogging.

Widgets

Though the comparison may be a bit rough, it is still worth acknowledging. A widget is an embedded device that provides some level of value to the publisher. This is somewhat akin to what Facebook has done with their ‘F8 Platform’, and more notably ‘Applications’. Once a user adds a given ‘Application’, it appears on their profile page, where other users can see it and interact with it (or even add it themselves).

RSS The concept of the ‘News Feed’ acting as an RSS reader was outlined above. Having said that, Facebook has started to integrate actual RSS protocol within the site as well. Anyone now has the ability to subscribe (via RSS) to another user’s ‘Notes’, in many cases. I’m sure RSS is being used in other places within the site, but I have just failed to notice them. In any case, I expect the adoption of RSS within the Facebook community to be slow, but steady.

On top of all these obvious examples, Facebook also makes extensive use of AJAX (Asynchronous JavaScript and XML) throughout the site. This creates a more intuitive, enjoyable user experience.

Facebook is a rebranding machine. The ability to provide such advanced technologies in a simple manner is truly remarkable.