Oh and...

For those that may not be as familiar with the blog interface, at the bottom of each post it says "# comments" and if you click that you can leave a comment. A page will come up that will let you type the comment and then pick how you want to be identified. If you have a google or blogger account it'll let you use that, or you can click Name/URL to just use a name. It looks like there are some other options, but I don't remember what they are and they should be pretty easy to figure out if you want to use them.