After facebook timeline we now have apps on the timeline, which leverage open graph API to post actions that you performed on other websites to your profile. Here is a complete list of apps (60) that are participating in the facebook timeline capability.

“Once you’ve added an app, you can begin updating your timeline with your activities as they happen.”

I personally have 6 apps that I have used / authorized and most of them post to facebook (twitter, wordpress, etc.)

I dont really use any of the other apps. Dont see a need yet. But this might just make me change my mind. (Deep sarcasm).

Do you use any apps? I am curious which apps are really used by other entrepreneurs.