Thanks for the interest! Subscribing over Email is a simple one-time process. It does require an account on the Microsoft TechNet/MSDN Community Server. This account is not tied to Live ID or other communities, it is just a simple username/password and your Emaill address. You will not receive other spam.
Step 1: If you do not already have one, you can create an account here - http://blogs.technet.com/user/CreateUser.aspx?ReturnUrl=/logout.aspx
Step 2: You can then subscribe to my blog here - http://blogs.technet.com/migreene/emailsubscriptions.aspx