Came across this and thought I would share it. You really need to keep an eye on Facebook and how they work to use your profile information. The end of the article shows how to turn off the applications.
New Facebook Social Features Secretly Add Apps to Your Profile
Fred Givhan
Computer Troubleshooters
6803 Hillcrest Avenue
Dallas, Texas 75205
214 363 6013
info@fixyourpc.net