Willamette Angel Conference
Founder
Expanding the Startup Ecosystem. Lean Startup Seattle , Seattle Angel Conf,Trans-Atlantic Angel Conf. Startup Investor Accelerator, Global Facilitator for Startup Weekend, Past Oregon Angel Fund participant
I recommend the "Running Lean" by Ash Maurya as a way to help startups frame the customer development discussion. It has been the best "back to basics" tool that I have found.