Notes from Google video Startup Success 2006
Distribution, Distribution, Distribution. There is no value in consumer Internet company if there is no distribution model. If you are not embarrassed by first version of your product you are too late to market. Keep iterating. Value speed and intelligent feedback.
Persistence, never take no for an answer. Opportunities - one opportunity leads to another. Keep the site very simple. Focus is very important for a startup. One step process, one form. Just do one thing and do it very well. Google - search, Flickr - photo etc.
Two Types of Entrepreneur
Pick an established market and penetrate a niche within it. Ex: Vertical search engine.
Look for patterns in the market and provide a solution. Ex: Wiki product for the non-geeks.