With Facebook buying Friendfeed for their development crew and search (among other things), things are going to get real interesting, Some uber-geeks think the real target is Google.
http://www.steverubel.com/photo-facebook-search-social-news-search
This, folks, is a very very big deal. And it's just the beginning. If you think about the number of sites that use Facebook Connect and ponder whether the crawl could span to those satellites as well, suddenly you can see a new era for search emerging. Google should be scared. Facebook may have a leg in here - if they can keep their community growing.
Facebook has 300 million users and is the 4th biggest website on the planet now.
-- Bob Morris
http://www.google.com/profiles/bob.morris