Just as an aside for people that are having problems with spam and such on their blog. Here's the instructions on how to make it so that anonymous posts aren't allowed. It won't completely solve the problem, but it should at least cut down on the stupid spam posts.
1) Click "Customize" in the upper right hand corner
2) Click "Settings" tab in the upper left hand corner
3) Click the "Comments" sub-tab in the middle
4) Scroll down to the "Who Can Comment?" area (second section) and select "Registered Users" or "Users with Google Accounts"