The developer team at Facebook are promoting iLife '09's new Facebook connectivity options:
Users of iPhoto ’09 can easily share and tag photos from iPhoto directly to Facebook. With help from Facebook Connect, photo tags from iPhoto ’09 can be added to Facebook and generate Facebook notifications.
A blog post on the topic mentions another FB integration with iWeb '09 that I was previously unaware of:
Mac users can update Facebook News Feed and alert friends anytime they update their websites using Apple’s iWeb ’09 application.
Good stuff for FB users.