As Mt. Gox erupts, SecondMarket, best known as a place to unload Facebook stock pre-IPO, emerges from the molten lava with plans for the first ever U.S.-based Bitcoin exchange. It will mimic "the early days of The IntercontinentalExchange," with founding members from "Wall Street banks and well-funded Bitcoin startups (but not, interesting, VC firms)."

Barry Silbert, CEO of the firm that's allowed equity-holders of private companies to trade amongst themselves, has some bad news: it's firing time. Or as he'd like to put the layoffs, an "org change."