People already love to play casual games. But when you take a casual game and stick it inside a social network, it becomes way more exciting.

Certainly anything that is news or opinion needs to be free on the Web, because the Web is this very fluid medium that is very much driven by links and the flow of visitors through a discussion via links.

Early in a startup, product decisions should be hunch driven. Later on, product decisions should be data driven.

Blog-based businesses have lower cost structures and are more 'authentic,' and as a result are drawing larger shares of ad budgets.

Markets come and go. Good business don't.

Venture capitalists are professional money managers. We are provided capital to invest as long as we can return it to our investors with a strong return in a reasonable amount of time. A strong return is three times cash on cash. A reasonable amount of time is ten years max.

The strategy of Tumblr is very elegant.. The atomic unit of user experience is the same as the ads.