I am trying to integrate facebook,twitter,linkedin chat in to one java application. I was searching for the same in google but did not find any useful information, so please if any of you have already done or know how to do? Please do consider this question.
Use restfb library for facebook integration
Use Twitter4J API for twitter integration http://twitter4j.org
Use Oauth library to integrate linkedln http://code.google.com/p/oauth/