Andy Hargadon's idea that building a start up is about building a network is one of those "duh" ideas. You read it, you say "yeah that makes sense"... yet, from then on, it changes the way you think about start ups.
Not a serial entrepreneur? As a founder, this approach also biases you toward a posture of humility, ambiguity and curiosity. It takes you out of "sell mode" and keeps you in "design/build" mode. Think: "I am building an experimental network, to see if there is a significant market, and a business model to address it efficiently and effectively."*
Spend more time on your business search than on your business plan. And let the search drive the network which drives the business model, which are then all described in the plan.
Note: I wrote this post in July, and it mysteriously showed up when I tried the new blogger interface this morning. So I hit "publish."
*Channeling Peter Drucker's super marvelous comment: "Efficiency is doing things right. Effectiveness is doing the right things."