Bookcelerator - A curated directory of books that will make you smarter
hackattic - No nonsense, real world programming challenges
Four Hour Book Club - 300+ Books recommended on the Tim Ferriss Show 📚
Takehome - Effective and humane coding challenges for candidates
Booknshelf - Social book and bookshelf discovery platform.
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.