Southern California's top startups showed up in force Friday at the Westin South Coast Plaza in Costa Mesa, for the Technology Council of Southern California's annual VentureNet conference. (socalTECH The day started with a keynote by John Suh of Legalzoom.com, and topped off with a pitch from David Sacks -- CEO of Geni.com, and also CEO of Geni spinoff Yammer.com, which recently won the top prize at the TechCrunch50-- plus a question and answer session which had Matt Coffin, founder of LowerMyBills, grilling Internet technology celebrity Jason Calacanis. The socalTECH was a media sponsor of the conference).