Great, but "problems of success" aside, here's another question which is probably more an international law question but, here goes...
Out of the gate, I am seeing folks from all over the world signup for my ad network (mainly, US, India, Singapore), and it has me scratching my head. I don't know how to deal with these customers should they ever convert on a sale.
Does this affect the way I will pay taxes on the revenue?
Are there countries I should absolutely NEVER try to send money to (for example, if the country is under embargo)? If for some reason, I can't pay folks from those places, what becomes of the tax burden? Is the tax liability for 100% of it on me, or can the money sit forever on hold without being taxed (presumably until the embargo is lifted)?