Additional to Facebook applications, Facebook games incorporated with spark in order to craft and have high engagement ratio. Construction of an application on Facebook gives you the chance to severely mix up in the heart of the Facebook experience.

Additional to Facebook applications, Facebook games incorporated with spark in order to craft and have high engagement ratio. Construction of an application on Facebook gives you the chance to severely mix up in the heart of the Facebook experience.

Facebook Platform provides a set of equipments which facilitate third-party developers to join the "open graph" A- whether through applications on Facebook.com or exterior websites and devices. Launched on May 24, 2007, Facebook Platform has evolved from enabling development just on Facebook.com to one also supporting integration across the web and devices.

On August 29, 2007, Facebook changed the way in which the recognition of applications is measured, to give consideration to the more engaging applications, following criticism that ranking applications only by the number of people who had installed the application was giving an advantage to the highly viral, yet useless applications. Tech blog Valley wag has criticized Facebook Applications, labeling them a "cornucopia of uselessness." Others have called for limiting third-party applications so the Facebook user experience is not ruined. Numerous applications created by the class were highly triumphant, and ranked amongst the top Facebook applications, with some achieving over 3.5 million users in a month.

Facebook Platform statistics as of May 2010.

• More than one million developers and entrepreneurs from more than 180 countries
• More than 550,000 active applications currently on Facebook Platform
• Every month, more than 70% of Facebook users engage with Platform applications
• More than 250,000 websites have integrated with Facebook Platform
• More than 100 million Facebook users engage with Facebook on external websites every month

Graph API
The Graph API is the core of Facebook Platform, enabling developers to read from and write data into Facebook. The Graph API presents a simple, consistent view of the Facebook social graph, uniformly representing objects in the graph (e.g., people, photos, events, and pages) and the connections between them (e.g., friend relationships, shared content, and photo tags).

Authentication
Facebook authentication enables developers, applications to interact with the Graph API on behalf of Facebook users, and it provides a single-sign on mechanism across web, mobile, and desktop apps.

Social plugins
Social plugins A- including the Like Button, Recommendations, and Activity Feed A- enable developers to provide social experiences to their users with just a few lines of HTML. All social plugins are extensions of Facebook and are specifically designed so no user data is shared with the sites on which they appear.