Steve Blank (author of the book) - http://steveblank.com/
Eric Ries - http://startuplessonslearned.blogspot.com/
- An advisee/investment of Steve Blank, started IMVU.com, Venture Advisor at Kleiner Perkins) His blog has become somewhat less useful lately though as he's been using it mostly to promote his "Lean Startup" classes.
Sean Ellis - http://startup-marketing.com/
- Has applied 4 Steps model at many companies, consults on "Customer Development" with VC backed companies
Also Venture Hacks is a great place to start. Check out the archives at http://venturehacks.com/archives/
Steve Blank (author of the book) - http://steveblank.com/
Eric Ries - http://startuplessonslearned.blogspot.com/
- An advisee/investment of Steve Blank, started IMVU.com, Venture Advisor at Kleiner Perkins) His blog has become somewhat less useful lately though as he's been using it mostly to promote his "Lean Startup" classes.
Sean Ellis - http://startup-marketing.com/
- Has applied 4 Steps model at many companies, consults on "Customer Development" with VC backed companies
Also Venture Hacks is a great place to start. Check out the archives at http://venturehacks.com/archives/