In reply to Jeff Chandler.

I've always thought an open source'ish BuddyPress/WordPress/WordPress.com/Gravatar mashup would be a good way to take on Facebook. But it's been a very long time and nothing has happened on that front, so I'm assuming it never will. I think it's an appealing idea though. I'd love a way to connect my blogs together with other sites into an extended social network lattice.