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Stikkit SMS Interface
Google APIlity Library
RFacebook Ruby Gem
Fb4j : Java Source for Facebook
VB.NET Facebook Library
Facebooker: Ruby library for Facebook
Fantasma: C++ Client Library for Facebook
Java Library for Facebook
APIs, mashups and code. Because the world's your programmable oyster.
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.