The Power of Unscalable Actions in Startup Success

Actually startups take off because the founders make them take off. There may be a handful that just grew by themselves, but usually it takes some sort of push to get them going.

You should take extraordinary measures not just to acquire users, but also to make them happy. For as long as they could (which turned out to be surprisingly long), Wufoo sent each new user a hand-written thank you note.

The feedback you get from engaging directly with your earliest users will be the best you ever get.

It's always worth asking if there's a subset of the market in which you can get a critical mass of users quickly.