Sublime
An inspiration engine for ideas
Let me repeat that information from paying customers is by far our #1 objective validation of market fit.
Patrick Vernon • Venture Capital Strategy: How to Think Like a Venture Capitalist

Startup Handbook: Landing Page Copywriting
julian.com
You Should Test That: Conversion Optimization for More Leads, Sales and Profit or The Art and Science of Optimized Marketing
amazon.com
The Business of Expertise: How Entrepreneurial Experts Convert Insight to Impact + Wealth
David C. Baker • 6 highlights
amazon.com