i did not try it before but i dont think it will be a problem but i must that yours is an intresting idea
i have them in my filter.there is no problem of doing it. put in google.com and it'll get rid of all google ads.
i have all of the donation adds in my filter list but they keep appearing so i think there is no use in filtering google adds
@ali_ravians: you have donation ads because google thought you need more traffic until they can placed the adsense ads to your site. Of course it no use to filter those donation ads.
http://forums.digitalpoint.com/register.php?a=act&u=93437&i=45575308 Help me out. Ebay register. FREE LAPTOP. bid on a 1 cent car easy. no credit card required.