fb4j is Facebook library written for Java developers, by Java developers. fb4j aides Facebook application development by providing a consistent object model to all of the functionality of the Facebook API.
Your Mashup not listed on ProgrammableWeb yet? Tell us about it and get listed.
Official Java API for Safe Creative
java-twitter - Google Code
RFacebook Ruby Gem
ASP.NET Library for Facebook
Facebook Developer Toolkit MVC Add-on
MKAbeFook: Cocoa library for Facebook
APIs, mashups and code. Because the world's your programmable oyster.
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.