Collectively, these talented start-up founders are leaving their mark on everything from healthcare and online video to Web security and e-Commerce. Based on what they've done so far, that's only the beginning.
Christina DesMarais is an Inc.com contributor who writes about the tech startup community, covering innovative ideas, news, and trends. On Google+, add her to one of your circles. Have a tip? Email her at christinadesmarais (at) live (dot) com.