The RubyRedditAPI is a Ruby wrapper for the Reddit API. It is authored by James Cook and documentation can be found on GitHub. Some of the features for this Ruby wrapper are: authentication, searching, friend and un-friending redditors, comment and submission voting, and more.
When it comes to Social Networks, Facebook definitely towers over the rest when it comes to numbers. While Facebook might be hard at work to expand its reach by entering new areas, Mxit which is Africa’s largest social network has plans of its own to expand its base by throwing open its platform via the Mxit API and encouraging developers to integrate Mxit into their applications.