I'm noticing that a lot of MS teams are using their 'blogs' as vehicles to post press releases. There's no conversation whatsoever. If there are comments between the pingbacks, they'll mostly be ignored.
The WHS team was, and still is, pretty excellent. They engage in conversation on forums and their blog. The IE team blog is dismal, and the Live ID blog is a joke. Over 6 months between updates, and no replies to questions in comments.