Looking for ideas for Blogwatcher

I'm looking for suggestions on ways to improve BlogWatcher. Things that would give it more general appeal.
I already know one thing: an ability to show at least a count of the comments associated with an entry. I'm not sure that I'm able to do that, but I know that it's something people would want.
Anything else? Make any suggestion, no matter how "practical" it sounds.
Also: how would people feel about ads in the output? Wendy has already told me she hates the idea. Anybody else want to chime in?