I only recently found this blog a little under a year ago (and the others) and think that the information I have found and the insite your share regarding Exchange is invaluable. I rarely find a topic of little interest. I check for a post first thing with my morning coffee.
I expecially enjoyed the posts regarding SP2 and the new tools to fight UCE (SPAM) including the specific information about how the SenderID and Intelligent message filter were going to function. That was GREAT, when the SP was release we were ready to roll in our testing lab the next day. It really allows an Exchange Administrator to know whats coming with regards to future features as well as possible problems that we may not have faced yet. Brillient!!
That all being said, keep up the good work!!
Robert Durkin