I guess this is the key:
http://www.google.com/support/webmas...y?answer=66361 says:
"There is no problem in being an affiliate as long as you create some added value for your users and produce valuable content that gives a user a reason to visit your site."
I didn't notice any changes in my min. bids, most of them still have a QS of Great and have extremely low min bids.
What I read on other (mainstream) forums is that the sites that got hit where or single page sites or sites using APIs, xml streams and where not really adding any unique content and value to the information. Those are probably also the sites that don't show up high in the organis results.