Making Something Simple Is Very Difficult.

It's A Matter Of Invitations Versus Context. Twitter Is Really Good At Providing Context, Like, I''m Having Coffee At Third Rail Coffee.' Foursquare Is About Invitations To Places. In This Respect Foursquare Has Started To Replace Yelp For Me.

An Idea That Can Change The Course Of The Company Can Come From Anywhere.

Great Companies Don't Just Have One Founding Moment. They Have Many Founding Moments.

My Goal Is To Simplify Complexity.

Everyone Has An Idea, But It's Really About Executing The Idea And Attracting Other People To Help You With The Idea.