Technically this isn't a problem, however I have no real idea of how to calculate what to charge.
I appreciate there is no magic formula, but would it be reasonable to take the eCPM figure from Adsense and double it? Or are there some "industry standard rates" that I could refer to for developing my own rates? or do I need to band things by page views or unique visitors etc.?
I'd like to give this a go, but want to get a reasonable return without overcharging or pricing myself out of the market.
Any help or advice appreciated.