MiniFB is a small, lightweight Ruby library for interacting with the Facebook API. A demo application that uses Rails with MiniFB is provided to show the library in action. MiniFB is offered by Appoxy, a web application development company.
The Twitter Streaming API has been successfully used by Yahoo!, Google, and Microsoft, who have been given access to the full feed of all public tweets. Twitter has now enabled this "firehouse" of data for a number of other companies.
Facebook has updated the Facebook SDK 3.1 for iOS, adding the ability to integrate Facebook in iOS 6 as well as other new features. Apple has added several new native features in iOS 6 including Auth dialog and view controller (share dialog). The Facebook SDK supports the use of these APIs.