nomis5 - 1:49 pm on Feb 6, 2013 (gmt 0)
There are times where the Adsense ads on the sites I have make no sense at all and CTRs plummet. For the past few days, it has dropped ridiculously and when I visit my sites, I'm being shown adverts for "Garage Installations" and "Bird Watching".
I had that recently, mature dating ads were appearing not only on my sites but others. One of my readers complained and I banned the ads. Normal interest based service was resumed.
I assumed that the advertisers had targeted certain sites for their ads to appear on without any interest-based reason. Excluding them from my sites wasn't easy though, as soon as I banned one, another look-alike appeared but perseverance paid off.