Description: Exercism is an open source online platform that provides programming exercises and mentoring for people looking to improve their coding skills. Users can access challenges in over 50 programming languages and get feedback from mentors.
Type: software
Pricing: Open Source
Description: Stack Exchange is a network of question-and-answer websites on topics in diverse fields, from software programming to cooking to photography. Users post questions which can be answered by other members of the community.
Type: software