The old skool haxors at 2600 have compiled a list of evil no no words and phrases blocked from Googhles instant results - make a very amusing if somewhat disturbing read.
Update: it isn't just limited to the search bar of your browser. Take a trip to Google's home page and start typing Pamela A and see all you search results magically disappear.
http://www.2600.com/googleblacklist/
Oh Big Brother please protect me from the bad bad mans on the interwebs.
Oh and don't eat Play-Doh