6.002x is an amazing course (it's the only EdX course that has run so far, but they have a great platform). The Udacity courses are generally slightly easier (

6.002x is an amazing course (it's the only EdX course that has run so far, but they have a great platform). The Udacity courses are generally slightly easier (e.g. they avoid the low-level details of the maths), but I really enjoyed CS373 (Programming a Robotic Car) and CS212 (Design of Computer Programs). The Coursera courses are a little hit and miss in terms of quality, but Quantum Computing and Design and Analysis of Algorithms are both very good.