But recently, increased scrutiny by regulators have dampened some of the excitement surrounding the sites. The sites, which claim they operate under a skill-based wagering model - not chance-based - and therefore should not be subject to gambling regulations, have soared in popularity over the last year, the Associated Press reports. Nevada regulators have ordered daily fantasy sports sites like FanDuel and DraftKings to shut down, saying the businesses can't operate in the state without a gambling license.
