I have added a link to 'All About Microsoft' in the sidebar. All About Microsoft if a blog at ZDNet by Mary Jo Foley that is, basically, all about Microsoft.
Mary Jo Foley and Paul Thorrot pair up on the TWiT podcast 'Windows Weekly'. As the name probably suggests, this is a weekly podcast from the TWiT network that talks about all kinds of things that revolve around Microsoft Windows and Microsoft in general.
The screen capture taken from the All About Microsoft blog (at right) provides a small insight into some of the topics that Mary Jo covers.
If you are an IT professional and you want to keep up with things that are happening with Microsoft the, if you don't already, it would be worthwhile popping in on Mary Jo's blog once a week at least.