The links to two interesting posts to the Facebook tech blog, focusing on integration:

• Facebook events to Google Calendar: http://www.insidefacebook.com/2009/02/15/how-to-sync-facebook-events-with-google-calendar/
• Twitter and Facebook status sync: http://www.insidefacebook.com/2009/01/22/how-to-sync-your-twitter-and-facebook-status-updates/