Not to be rude but.. TBH... Live with it. If it isn't to a p*rn site, or dating site it isn't really a big deal.
Do you have too many Aisan women also? Also, I got an ad for ventrilo, which is a site that has a "my life is falling apart" forum.
They don't always come directly from google searches. Look in the OP of the newest add I have gotten. NOTHING I have been searching.
new top content one is doing even better than the sidebar one now... So needless to say they are likely here to stay. If you click Privacy Policy at the bottom, there is a link to opt out of interest based advertising on the internet... but honestly you should just ignore the odd ones, as interest based is what helps show you relevant ads. I've actually had something I was interested on EMC quite a few times but I cant click our own ads.