Brainiac - Database of 150 cognitive biases that control our decisions
Ground News Bias Checker - Browser extension which exposes media bias as you browse.
GoodUI - Collection of clever UX patterns & ideas
Growth.Design Case Studies - Product tips… in a comic book format
Kickstart Side Hustle Newsletter - Dwarf-size newsletter with viral marketing case studies
PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.