Deep learning
Free
Introduction to Deep Learning (6.S191)
with MIT
MIT's flagship bootcamp, refreshed every year and free to follow.
Intermediate 25h
Courses from MIT
MIT publishes course materials openly as a matter of policy, through OpenCourseWare and individual course sites. The material here is the same taught on campus, released free and refreshed regularly.
2 courses and communities, checked before they went up.
