Facebook has heard enough from it's members that it finally caved and changed it's terms of use back to what it originally was.... you own your content.
Their thoughts on it before were that in order to properly distribute your content to others on Facebook, you'd have to give them license to share it. But people didn't agree with that.
Story on CNN:
http://www.cnn.com/2009/TECH/02/18/f...sal/index.html
Facebook Blog:
http://blog.facebook.com/blog.php?post=54746167130