Would Google put these adverts on:
DIMES Project http://www.netdimes.org
Corporate Contact http://www.corporatecontact.info
Sky TV http://www.sky.co.uk
Electricity Pylons Around The World http://www.gorge.org/pylons/
Music eXchange and trading Zone http://www.mxtz.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.