Anybody know any good ways to market games on ovi besides maybe google ad words?

Anybody ever use google ad words and found it any good?

I looked for like a game review site for N900 and found nothing. There isn't even really much for Symbian - I sent a message to allaboutsymbian but not sure how easy it is to get a review done.

I thought about offering a prize for getting tops scores.... but I'm guessing it will get hacked/cheated not sure if there would be a way to get around this.

Does anybody else have experience on how to pormote apps?