Sarah Milstein, CEO of Lean Startup Productions, writes regularly on entrepreneurship and issues of race and gender. Her career has spanned the tech and media sectors, and she has run influential conferences like Web 2.0 Expo and Tools of Change for Publishing (TOC). During the first Internet bubble, she was a regular freelance contributor for The New York Times, among other outlets. Before that, she founded Just Food's CSA in NYC program and helped children's musician Laurie Berkner launch her record label. Bonus fact: Sarah was the 21st user of Twitter.Bonus fact: she was the 21st user of Twitter.