I had looked into this before and it was no where near as robust as what you are showing it is now. I will have to look into this again. Thanks for the heads up.
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I am doing a bunch of research on commentluv right now. I think I am going to go ahead and get the Premium version of it. From what I hear it would be worth its weight in gold if it actually weighed something. :] Seriously, every blogger is talking about it right now. Thanks for this awesome post.