Ground News Bias Checker - Browser extension which exposes media bias as you browse.
Growth.Design Case Studies - Product tips… in a comic book format
Brainiac - Database of 150 cognitive biases that control our decisions
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
GoodUI - Collection of clever UX patterns & ideas
Kickstart Side Hustle Newsletter - Dwarf-size newsletter with viral marketing case studies