A Ruby interface to the Facebook API v1.0+. Works with RFacebook on Rails plugin (see http://rfacebook.rubyforge.org).

A library for Scraping a webpage by it's url and return the web page title, description, site name, images, favicon and video (if there's a video). Inspired by facebook url sharer.

ruby interface for Facebook's Platform API.

Share to pubic website such as facebook, twitter, renren, sina, etc.

Support for sessions tied to Facebook users.

See http://developers.facebook.com/docs/authentication/canvas

Make avaiable to your users for login with Devise or Facebook, and manage them and your admins. Each admin is related to roles with Rolify, and manages authorization with CanCan.

A user class that is created with Facebook

Simple messaging wrapper for Facebook, Twitter, Vkontakte

Creates little snippet like facebook or Google+ does from given uri.

This gem allows text/messages to be shared on social networking sites (twitter,facebook,linkedin)

This gem acts as a proxy for avatars on Twitter & Facebook.

Easy helper methods for adding custom social share buttons (Facebook, Twitter, Google+) to your Rails app.

Social linker generates share-links for the different social networks from a simple SocialLinker::Subject class. Supported networks are: Twitter, Facebook, LinkedIn, Google+, Pinterest, and email

Want to know how popular you are? This gem helps you look up how many Facebook friends and Twitter followers you have.

This Gem provides simple methods to add sharing functionality to your page. Currently supporting Facebook, Twitter Google+ and Reddit. Feel free to contact me if you want any features/services included!

Get Facebook comments and save these in txt, csv file.

StatsCollect is a little framework gathering statistics from external sources (social networks, web sites...), stored in pluggable backends. It can be very easily extended thanks to its plugins (currently include Facebook, Myspace, Youtube, Google).

FCleaner allows cleaning the Activity Log on Facebook

This gem will allow your web application or mobile app to use tagging in a similar manner to Facebook or Twitter.