Daily fantasy sports sites like DraftKings address issues with traditional season-long fantasy by allowing users to draft one-game lineups based on a salary cap system and earn points from players' game stats. This weekly format and element of skill appeals to casual bettors. While daily fantasy sites operate at a loss financially, their business model relies on entry fees and large jackpots while taking a cut of 6-15%. Legalized sports betting is expanding their potential market and DraftKings is successfully entering the mobile sports betting space.