― Rip Empson is a writer and rabble-rouser at TechCrunch. He covers startups, music, social, mobile, health, and education. You can reach him at rip[at]techcrunch[dot]com ? Learn More One of the hottest trends in gaming right now isn’t mobile, social, or massively multiplayer games, but online casinos. This may seem somewhat surprising considering that it was only a year ago that the Justice Department seized the domain names of some of the country’s largest online poker platforms, like [...].