Would Google put these adverts on:
Gradwell.com http://www.gradwell.com
British Monarchy official website http://www.royal.gov.uk
Ofgem http://www.ofgem.gov.uk
Blogger http://www.blogger.com
FIFA http://www.fifa.com
By the way, it's very easy to cheat at this game by viewing the source of the page, as the test URL is passed to Google via an IFRAME. But the only person you're cheating is you, so there's no point unless you're incredibly sad.