Product School - The global leader in product management training
hackattic - No nonsense, real world programming challenges
The Product Manifesto - Product Managers face the biggest challenges of our day, which is why our community needs a common set of product principles.
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Intercom on Product Management - The ultimate resource for aspiring product managers
Takehome - Effective and humane coding challenges for candidates