Welcome To The Neighborhood To outsiders, San Francisco is all one big city. But to those in the know, there is SoMa, South of Market, where sleek eateries are squeezed between bail bonds storefronts and high-priced lofts look out over still rough edges. It's home to a generation of hipsters disillusioned by the dotcom bust, restless and searching for the next thrill, the next high, the next step too far. Sex, drugs, kink-you can find it anywhere in SoMa, if you know where to look. But first, y