In my search for interesting things to post about, I ran across a new blog that tracks Microsoft product team blogs. BlogMS tracks over 100 blogs that are written by Microsoft product teams and other interesting Microsoft news. The most recent post talks about using Microsoft Connect to provide feedback on Microsoft products. A post from a couple of days ago points to the announcements about licensing and support changes that impact Virtualization.
This is just the tip of the iceberg though. There are literally thousands of blogs that are maintained by Microsoft employees. Many developer related blogs can be found at the main MSDN blog site. There a similar site on Technet for IT Pro related topics (where this blog is located). We also have a Community Blogs site that helps you search through and find blogs you might be interested in.