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Hackr.io - There are tons of online programming courses and tutorials, but it's never easy to find the best one. Try Hackr.io to find the best online courses submitted & voted by the programming community.
Tutr Instruct - The easiest way for teachers to host live classes
TutorMe - Connect with a high-quality tutor in under 30 seconds
UPchieve - UPchieve offers one-on-one, on-demand online tutoring and college counseling to high school students through the United States. UPchieve is 100% free for students who qualify.
Tutset - Curated list of the best programming tutorials on the web.