The Blogger team over at Google has finally improved the comments mechanism. Readers (you) can now post comments under your real name without registering as a Blogger user. You can also leave a URL to your own blog or other web site.
Additionally, blog comments can now contain some (safe) html tags.
I'm glad Google finally got around to making this improvement. It's been a looong time coming. I hope that some of the amazingly innovative UI features of Google's other services start trickling into Blogger soon (read: Gmail spellcheck!).