sonjay - 10:46 am on Apr 29, 2010 (gmt 0)
I've been noticing the interest-based ads in my general surfing. I do some research on a product, order one from somewhere, and for days afterward I'm seeing ads for that product and similar ones on all the sites I visit.
It's kind of creepy. From the point of view of a websurfer and consumer, I don't like it.
There seems to be a slight drop in CTR on my own AdSense ads, dating from around mid-February. I'm not sure the interest ads were even rolled out by then, though, so I'm not sure it can be attributed to that.