If you've been paying attention really closely, you might have noticed Tatsuo's entry concerning Planet OpenSSO. This is a new blog aggregation, running on Sun's new Roller Planet infrastructure, collecting together the OpenSSO-related posts from (currently) 10 Sun engineers. I'll add feeds as and when I notice them - please do leave a comment here if there is one that you'd like to see included. Note that, to keep things on-topic, I'm using Roller's tagging feature to filter only entries with the 'opensso' tag, so the signal-to-noise ratio should stay pretty high. Go check it out.