I'm always curious where these mysterious "ads" are in Facebook. I have yet to see a single one in my profile (and yes even with adblock turned off). Do people really find their profiles plastered with advertising?
They occasionally show up in one of the columns on the homepage, next to the news feed. They're quite small, and very easily ignorable. Facebook even lets you close them, and after you do so enough times it seems to stop showing them to you.
