Someone commented about annoying pop-up ads in my previous post (re: background music). I agree--I would never advise a new blogger to use this kind of advertising.
I don't think anyone really likes pop-ups. We may tolerate them if there is a website that we really like, but even then, most of us would rather not deal with them. In my opinion, a new blogger simply cannot afford to annoy his/her readers.
Back in the day I used a software called pop-up stopper (or something like that). Most browsers have them built in now.