Facebook

fb

Use the fb URL scheme to launch the Facebook app.

Application homepage: http://www.facebook.com/
iTunes link: http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware
HTML Link example: <a href="fb://friends">Your Facebook friends</a>
Native application URL string example: fb://requests
Extended example:
Tags:

Robert Strojan of Blackout Labs discovered this scheme. Refer to the iPhone Dev Tools website for extensive information.