if you haven't seen kbalertz.com yet, you are missing out. especially if you consume rss feeds (and if using sharepoint, hopefully with feedreader), this is a must have feed for administrators/it folks/developers who want to stay up-to-date on their microsoft knowledge base articles for their technologies.
kbalertz.com provides rss feeds for your technologies of choice...check them out...
example: http://www.kbalertz.com/rss/SPPSVR.xml