I just checked my reports at goto and I was getting charged for a lot of keywords I did not sign up for. I had a lot of golf related searches and clicks that I was getting charged for. I did a search on one of the terms and clicked through one of the links. The bad thing about this is that I am paying for these clicks and they aren't even coming to my site!!!
Everyone check your reports carefully! I emailed goto this morning and haven't gotten a response yet.