Targeted ads have been very useful to me, but I do game the system a bit. When I start seeing targeted ads for irrelevant things, I just do some searches for th

Targeted ads have been very useful to me, but I do game the system a bit. When I start seeing targeted ads for irrelevant things, I just do some searches for things I like to look at, and shortly thereafter, all of the ads I get are for things I like to look at. It's a few minutes of effort once every couple of weeks, but I feel the results are a lot less intrusive.