Not too terribly surprising given the folks involved, but FriendFeed is pretty damned cool. The basic idea is that you give FriendFeed your social network coordinates (from LinkedIn, Last.fm, your blog, del.icio.us, Flickr, etc., etc.), your friends do the same thing, and then you have at your finger tips the k-way cross-product of all of the information flowing out of all your friends’ social networks.
The barrier to entry is extremely low. It’s very easy for you to enter all the necessary information about your own networks. I set my info up in less than 5 minutes. It’s likewise easy to subscribe to your friends’ meta-feeds. There’s a nice friend recommender / collaborative filtering thing-a-ma-bob that gets you most of your network by presenting folks you’re likely to know and then letting you subscribe to them with a single click.
Very nice idea guys, and a beautifully simple UI. I’ll be curious to see how manageable the torrent of information flowing out this network of networks will be over time. I’m sure they’re already thinking about clever solutions to this problem though.
My feed is at http://friendfeed.com/kevinscott.