Be careful. New networks will typically have a more difficult time attracting exclusive offers which have the highest payout comparitavely. Not saying it can't be done, but be sure to shop around to make sure the offers are as good as you think they are. Also, cash flow can be a big issue with startup networks. Make sure they are able to pay you for your work even if their advertiser stiffs them, their basement floods or whatever. My $0.02