I love ads. And the cash they make. I don't think they cheapen a website at all, and you'd be hard pressed to find that many websites without some form of advertising.
Try them out, and see if they work, and see if your users find them useful, or horrible.
Also do the maths - how many Pro accounts would you need to sell to make the same amount as sticking a couple of adverts up?
Try them out, and see if they work, and see if your users find them useful, or horrible.
Also do the maths - how many Pro accounts would you need to sell to make the same amount as sticking a couple of adverts up?