Stanford will hosting 3 free online computer science courses this Fall:
They are available through the Stanford Engineering Department with open enrollment. I don’t know if there will be any limit to the number of participants, further information is set to be released this September. The Stanford Report can be read here.
Other seemingly self-paced online curriculum that is part of Prof. Andrew Ng’s OpenClassroom can be found on the OpenClassroom website. It is unclear whether the courses listed on this page will be offered as a structured online offering, or are just available for interested parties.