Starting a few days ago I started seeing ads that I felt were not relevant to my audience so I added the domain to my blocked list. Problem is, the ads kept showing. So I was looking at the ad code more closely and I could see code that said domain_PSA_AD the domain is an advertiser I do NOT want to block. So what I figure is going is a big national advertiser is somehow paying to run these public service ads for a totally different domain, but the only way to stop them would be to also block the big national advertiser's domain. Crazy right?