I thought this would be of great interest to everyone here.
The folks over at Government Slaves put together a comprehensive list of sites being targeted and penalized by Google. We made the list, among many other great sites that you should support if they interest you. They have also linked to a really interesting guide that shows just how Google purposefully suppresses sites they find offensive. The entire guide is worth a review, but I found age 126 particularly interesting.
Check them out and give their list the attention it deserves.