Anyone ever purchase ads through AdWords here on DP? I've done it once before, but it was just to mess around (spent like $10 ). I just started a campaign for StumbleUpon Exchange and I'm pretty excited to see what results I get for the next few days. I put a daily budget of $5 because I don't want things getting out of hand (I do have college to pay! ). Anyway, anyone have any experience with advertising here on DP? What were the results and how much did you end up spending? Thanks!