While Nevada is on the fast track to allowing Internet poker within its borders, some industry players question whether the state's population of about 2.6 million is big enough to support a thriving online-poker sector, even if the state moves ahead with its plan.

WSJ: Nevada Sets Stage for Online Poker

Professionals who specialize in gambling addiction agree that video poker provides an exceptionally fast track to addiction.

CNN: They Call It Video Crack

As far as other individual sports go, it pays to be a great poker player or the owner of a very fast horse.

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