Some of you probably already know this, but this is for those who don't. To easily find commentluv blogs, simply google:
“Enable CommentLuv which will try and get your last blog post, please be patient while it finds it for you” with your niche before or after the phrase. I suppose you could just use it to find ANY commentluv blog, which is equally as fun, depending on your goal.
Hope this helps someone out there.