Makerlog - Makerlog is the dead-simple task log that helps you stay productive and ship faster.
Marketing Examples - A gallery of real world marketing case studies. Updated every day.
WIP.co - Work in progress. We are a community of makers who help each other ship product.
Growth.Design Case Studies - Product tips… in a comic book format
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
Brainiac - Database of 150 cognitive biases that control our decisions