What are the News.YC rules of startups?

Everyone has their own beliefs, but in general I would say: Build something users want, release early and release often, and spend as little money as possible in the process.

Build something you would use too. That way, you would also have that vested interest to improve upon it.

build...sell...retire (just kidding)<p>Building a Product People Want (seems like PG's single golden rule)