I just read an update on Google's Blogger account changes. Apparently readers who want to follow and comment on blog posts they need to sign up for a Google account. I wasn't aware of this until I read Google's Blogger Buzz today where they state that all non Google followers have to have a Google account to follow blogs. They used to have a Friend Connect feature for people to sign into to follow blogs but that feature is gone.
I'm going to see if I can change my settings to allow non Google readers to at least be able to comment on my posts.