F5 Networks, Inc. is a provider of Application Delivery Networking (ADN) technology that optimizes the delivery of network-based applications and the security, performance, and availability of servers, data storage devices, and other network resources and is normally managed by the system administrators and engineers.

A popular free social networking website that allows registered users to create profiles, upload photos and video, send messages and keep in touch with friends, family and colleagues. 

A feature that allows users to show their support for specific comments, pictures, wall posts, statuses, or fan pages. Added in February 2009, it allows users to show their appreciation for content without having to make a written comment. 

The Facebook Platform is a software environment provided by the social networking service Facebook for third-party developers to create their own applications and services that access data in Facebook. These applications on Facebook platform are referred as "Facebook Apps".

A single sign-on application which allows users to interact on other websites through their Facebook account. Launched in December 2008, Facebook Connect works with over 15,000 "partnered" sites to make site access easier for its users. 

A calendar-based resource which can be used to notify users of upcoming occasions. Events can be created by anyone, and can be open to anyone or private. The creator can invite his friends, members of a group, or fans of a page. 

A user who "likes" a particular page. If a user chooses to "like" a page, they are then able to get updates from that page's administrator through status updates, link posts, and event invitations. 

  The primary way to get data in and out of Facebook's social graph. It's a low-level HTTP-based API that you can use to query data, post new stories, create check-ins or any of the other tasks that an app might need to do.

Facebook's version of web page analysis, which allows a user to keep track of information such as page views, unique views, fan statistics, wall posts, video and audio plays, photo views, and so on. 

Described by Facebook as a way to "give positive feedback and connect with things you care about". Liking a Brand or a Celebrity will allow facebook to post their updates on your wall.

A feature that allows a user to access Facebook from their cell phone through text messages, e-mails, downloaded applications or a web browser. Launched in 2007, it  was designed to give users the ability to view and update their pages on-the-go. 

A public profile specifically created for businesses, brands, celebrities, causes, and other organizations. Unlike personal profiles, pages do not gain "friends," but "fans" - which are people who choose to "like" a page. 

An update feature which allows users to discuss their thoughts, whereabouts, or important information with their friends. Statuses can be updated from a web browser, mobile site, or through text message.

The area on a profile or page where friends and “fans" can post their thoughts, views, or criticisms for everyone to see. Walls have three viewing settings: user + others, just the user, and just others. 

Factor analysis is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved variables called factors.

A jquery method that gradually changes the opacity, for selected elements, from hidden to visible (fading effect).