Today I upgraded the blog software at sheeri.com (and sheeri.net and sheeri.org). Please let me know if you find something that doesn't work as expected -- firstname.lastname@example.org.
At the MySQL Users Conference, my good friend Mark Atwood (creator of the free Amazon S3 Storage Engine) mentioned that any site with a login should have OpenID as an option.
Mark, I upgraded for you! I was using Wordpress 1.5.2, now I'm at the "latest" version. Anyway, this is just to let folks know that if you so choose, you may now use OpenId if you wish to login and make comments.
Of course, I do not require login (and have a great spam filter) so that's just another choice you have.