OK, here's some more Penguin feedback that has me a bit frustrated. I have an EMD with a few hundred links that was evidently penalized. Two of the top three sites that are now ranking are not EMD's (one of them is) and have less than 10 links for that keyword phrase. The interesting thing is that ALL 10 LINKS ARE EXACT MATCH. They have no anchor diversity. It's not a temporary thing either. They appeared right after April 24th and have stayed there. What's up with that?