In a ChangeThis exclusive: The craigslist founder reveals the values that made craigslist a success.

Craig says:

A lot of people say that the internet is about technology. For me, it's about people, and people connecting with each other in their day-to-day lives. In that way, the internet hasn't changed at all since I started craigslist ten years ago. We help people to find each other and we give them a voice, and somehow, people really do feel a sense of community that they belong to. Ten years on, now we're just connecting more people in more places: we think of ourselves as a family of community bulletin boards that helps people connect to get everyday stuff done. We've said that often, and it's true.

I was attempting to run a classified site 10 years ago too. It was fairly popular at the time. Sometimes I received over 2,000 new ads a day. But I failed to see the potential in it, and later abandoned the idea. The point is, don't let negative people tell you something can't be done until you've tried it. Just because your neighbor says it can't be done, doesn't mean YOU can't do it.