On mine, "New Nintendo Wii games!" Cool, nothing weird, but it could be a lot worse. I remember I was at school doing research for science. I was looking at a page of cougars. I looked over at the google ad, and it said "MILF cougars: Want to date a cougar Come here!". Worst part is, that's the site my teacher directed me to. Second worst thing, on the bottom on the home page of the site, they said "due to using google ads, we are not responsible for any offensive ads you may see". so it was obvious it happened before.