Marc Andreessen

I write for kids because I think the most interesting (and most humorous) stories come from people's childhoods. When I was writing 'Diary of a Wimpy Kid,' I had a blast talking on the phone to my younger brother, Patrick, remembering all of the things that happened to our family when we were growing up.

Startups need to focus on building a foundation for their company culture early, and then they need to revisit it often. Every time a hire is made, a feature is launched, a Facebook status is updated, a press interview is given, a round of financing is raised, or a meeting is held, culture should be part of the decision-making process.