Facebook Connect is way to make your application more social. With it you gain access to: Identity: the user’s name, photo and more [User]. Social Graph: the user’s friends and connections [Connection]. Distribution: the Stream, and the ability to communicate [Publishing] Integration: publishers, canvas pages, profile boxes & tabs. This guide is for using the Mu JavaScript library to access the above on your site. Mu is a very small library which you can use along with your favourite JavaScript library such as Dojo, jQuery, MooTools, Prototype or YUI.