This coursera course was taken down, but it is now up and running at lagunita.stanford.edu [0], which uses edx's open source platform [1]. The same happened to other stanford courses previously on coursera, you can find them here [2], including Compilers, Automata Theory, and Convex Optimization.
[0] https://lagunita.stanford.edu/courses/course-v1:ComputerScie...
[1] https://open.edx.org/ https://github.com/edx/edx-platform
[2] https://lagunita.stanford.edu/courses