Next, a WMW thread mentions that Google AdSense has started testing a feature for you to choose which sites are allowed to publish ads using your AdSense code, specifically to be able to report “unauthorized sites that have displayed ads using your AdSense publisher ID within the last week.”
(via Barry Schwartz at SERoundtable.)
Finally, at the SMX session on personalized search, Matt Cutts stated that if you want to turn off personalized search, append &pws=0 to the end of your search URL. I believe he also suggested that someone could make a Firefox extension to include the parameter (and get a lot of links!).