[afs35mm]

I took and completed Algorithms: Design and Analysis, Part 1 (https://www.coursera.org/course/algo) for free, and it was 100% worth it. It was just the right amount of challenging, intellectually stimulating, and language agnostic so I think it actually made me a better JavaScript programmer in addition.

I made it a point to meet all the deadlines and assignments, which kept me honest and forced me to be timely. It was free when I did it, but I'm not sure if that's changed since looking at other courses I don't seem able to receive a certificate or weekly grades if not paying... Point being it may be worth it to pay just so you feel incentivized to finish the course with a passing grade :)