The Product Management guide - A book on how to create and ship products that people love
Marketing Examples - A gallery of real world marketing case studies. Updated every day.
Intercom on Product Management - The ultimate resource for aspiring product managers
Growth.Design Case Studies - Product tips… in a comic book format
Xobin - Most Comprehesive Pre-Employment skills testing and Psychometric Assessment Platform.
Brainiac - Database of 150 cognitive biases that control our decisions