The Launch PadBy: Randall Stross A behind the scenes look at how tomorrows hottest startups are being primed for greatness Investment firm Y Combinator is the most sought after home for startups in Silicon Valley. Twice a year, it funds dozens of just founded startups and provides three months of guidance from Paul Graham, YCs impresario, and his partners. Receiving an offer from YC creates the opportunity of a lifetime. Acclaimed journalist Randall Stross was