SaltyBet is a website where people can use fake money in order to bid on who they think will be the winning players in major, streamed fighting game tournament matches. It tracks participants' rankings via how much they bet and payouts and such. It was featured a lot during EVO.
What Salty's Dream Cast Casino is: when no big fighting game tournaments are streamed, a 24/7 stream of M.U.G.E.N. (freeware crazy fighting game engine) where 1v1 matches of different A.I. controlled characters will take place where people can place bets on who they think will win. It's pretty hilarious/ridiculous and I thought I'd share.