cantonsen
JFacebook by MMI 
Easy Facebook Integration and Registration Package for Joomla. ** New com_jfacebook for Registration Social Plugin. To be used specifically for a custom username. ** JFacebook has been released for Joomla!1.6 for Facebook Registration Functionality ...
MediaWiki Login
This plugin allows you to log into Joomla and also automatically be logged into MediaWiki. Don't forget to install and configure the MediaWiki extension.
Facebook Graph Connect
Implements new Facebook OAuth 2.0 protocol for authentication and authorization, this extension lets Facebook users quickly register on your site. If you already have lots of users in joomla, they don't need to create new account, It has option to auto li ...
Udjamaflip's Facebook Comments
Recently I have been progressing onto using Joomla 1.6 on websites more often and have discovered a distinct lack of a joomla 1.6 jComments, or any good Joomla 1.6 comments plugin that's non-commercial for that matter. In response to this I was originally ...