The School of Computer Science at the University of Massachusetts Amherst is offering open, online courses to anyone interested in learning about computer science topics. Courses are offered for free on a non-credit basis, and run in tandem with on-campus lectures.
For Spring 2013, we are offering two courses: undergraduate-level Computer Networks by Professor Arun Venkataramani, and graduate-level Distributed Operating Systems by Professor Prashant Shenoy.
Find out more on our OpenCS site at http://open.cs.umass.edu.