Plaxo is also doing interesting stuff
Wow, more recognition for the big shift at Plaxo from an engineer I respect. Brad Fitzpatrick wrote most of LiveJournal and probably some important parts of SixApart’s architecture. He just did a great brain dump entitled Thoughts on the Social Graph. I recommend it. Like the people that I know who think about this (Terry, MarkJ, and Joseph, of course), we wonder when the walled-gardens of social networks (Facebook, MySpace, Bebo, LinkedIn, etc.) will open up. This document is a great starting conversation to the solution to that problem.
P.S. I thought 2006 was going to be the ‘year for identity’. Those initiatives have fizzled. I’m a lot more excited about these directions.