At the recent EdTech 2013 Conference in UCC, one of the keynote speakers Ross Mahon (@roscomahon) of Google, told us about Course Builder which is still at the experimental stage, but the tool is available (here) for early adopters.
Course Builder is Google's attempt to provide a platform for building on-line courses "whether they're for 10 students or 100,000 students" ranging from full University courses to short "How To..." videos. They are a little late into this space following the success of Udemy, Udacity, Coursera, and EdX. But I've no doubt that Google will make a success of this mainly because of all the content that they already have on YouTube EDU. Check out the video below from Peter Norvig, Director of Research at Google, who introduces Course Builder: