Twitter is the ultimate service for the mobile age. Its simplification and constraint of the publishing medium to 140 characters is perfectly complementary to a mobile experience. People still need longer stuff, but they see the headline on Twitter or Facebook.

Usage is like oxygen for ideas. That means every moment you're working on something without it being in the public it's actually dying, deprived of the oxygen of the real world.

The biggest motivation is not the money but the impact.

Akismet started on a $70 dollar-a-month server. Anyone can scrape together $70.

As an entrepreneur making decisions for your company, always go back to your first principles of what's important to you and why you started in the first place.

Twitter is the ultimate service for the mobile age. Its simplification and constraint of the publishing medium to 140 characters is perfectly complementary to a mobile experience. People still need longer stuff, but they see the headline on Twitter or Facebook.

Simplicity not simplistic.