iridiax - 4:11 am on Jul 12, 2010 (gmt 0)
Following a visit to a long bookmarked site, I now have an interest-based ad for it following me from site to site as well. It's like being stalked. I only see the ad on content sites, not in Google search. I used the competitive ad filter to block it from my own, very unrelated sites because I was so sick of seeing it.