General:

• Farnham Street (Mental models / Decision Making) - Shane Parish

Revenue: Sales, Marketing, and Growth

• Winning by Design
• Sales Hacker
• Hubspot
• John Barrows Sales training
• Growth Masters community (segment) The on-demand lessons will teach you both the fundamentals and cutting-edge tactics of product management and growth.
• Understanding buyer behavior (G2)

VCs / Startups

• Paul Graham (co-founder at Y-combinator)
• Naval Ravikant (CEO Angel List - talks about wealth & happiness)
• Stage2Capital - the Go To Market Venture fund
• Andrew Chen's essays - a16z partner

Mindset

• The Daily Stoic - Ryan Holiday writes extensively on stoicism

Marketing