03/18/2010 05:12 am ET | Updated May 25, 2011

Start Project: Silicon Valley's 'Justice League Of Entrepreneurs' Brings Together Heavy Hitters Of The Start-Up World

With the Start Project, some successful Silicon Valley entrepreneurs are banding together to start companies.

They're not wearing costumes (thank heavens), but the idea is basically the same. Seven experienced Internet-company founders have joined together to form an incubator based in Mill Valley, north of San Francisco. They plan to generate ideas and then spin out companies, with one of the founders steering a start-up through its early stages.