I've been a member of Tradesports for a few years, and have made healthy returns on a small account. When I joined in 2005, they opperated one of the most effecient, tradeable markets I'd ever seen. Since then it has gone down the tubes. Their fee structure was as such: liquidity providers were charged nothing, liquidity takers were charged .04 per contract. It was pure and simple, and had only a few weaknesses. Currently they charge 4% on all net proffits, and do not reward lliquidity providers, only full blown market makers. IF there is another P2P sports trading site out there, I will consider switching. I think 4% is pretty ridiculous. Anyone know of a better option?