GrowthList - A crowd-sourced list of growth hacks
Kialo - Kialo is the platform for rational debate. Empowering reason through friendly and open discussions.
GrowthHackers Projects - Growth collaboration software for teams 📈
DebateGraph - Graph visualization of: Join a global community of mappers with over half a million ideas and 30,000 maps. Click on the bubbles to explore, and log-in to create free public & private maps on any topic!
Marketing Examples - A gallery of real world marketing case studies. Updated every day.
Rationale - Rationale let's you create, online, argument maps.