Ray Ozzie on SSE - Microsoft's RSS Extensions
I blogged a little while ago about the new RSS support built into Windows Vista, and I got a pointer today to a post on Ray Ozzie's blog discussing the Microsoft RSS extensions in much more detail, including some of its history and how Dave Winer got involved (he's the guy that basically built the RSS standard we use today).
It looks really interesting, and it's also great that Microsoft will release it under a Creative Commons license ("Creative Commons is a nonprofit organization that offers flexible copyright licenses for creative works." - Creative Commons)