Yesterday there was a panel for the ages. The title was something like “Are Paid Links Evil?” and it was STANDING ROOM ONLY.
The panel consisted of Matt Cutts, Michael Gray, Todd Malicoat, Greg Boser, Todd Freisen and this other guy.
I am sure if you search around the web you can find some good write ups on the panel.
Michael Gray gave a very passionate presentation that got a very large reaction from the standing room only crowd. I hope he puts it online because it was really good.
Hopefully someone can get a video of this panel online sometime because no writeup could possible do it justice.