I frequent another blog, http://johnshore.com/ and he recently installed a new widget that I really like, so I installed it here. It is a comment tool, that gives a commenter a few more options, like the ability to edit a comment and to rate another's comments. It also has a couple of other things like commenter rankings.
I do realize that my blog is not nearly as popular as John's...yet, but I like the tool and so am testing it here. Give it a try,why don't you?