Change MOOC
http://change.mooc.ca/index.html
This MOOC was a research project by National Research Centre of Canada's PLE service and the Technology Enhanced Knowledge Research Institute. Looking through the course, each week was produced a different guest "speaker", not necessarily connected with either organisation with 3 course facilititators co-ordinating the overall course.
This most fits the USU model, being small scale and co-ordinated by a small central team with a number of volunteers providing materials.
There is very little direct information on the site on how it operates in terms of course creation as it is a single course however.
Coursera
https://www.coursera.org
Coursera contains a collection of open courses produced not by coursera in the main, but through partner universities. The coursera site boldly highlights the fact that the site contains 338 courses from 63 universities. The site is actively recruiting for a growing team of employees.
In some ways this follows the rice model, in that coursera just host the content and leave co-ordination of the materials to be produced to the universities. However, as the site isn't open to anyone to contribute and university vendors appear to develop courses in partnership with coursera who provide the technical support in creation, the MIT model may be more appropriate.
Jorum is a site where educators share materials and can find other shared materials. As such no co-ordination on the materials is undertaken by the site itself, it is solely a hosting platform.
As such Jorum very much follows the rice model.
The way Jorum works is very clearly outlined on the front page of the site.
OpenLearn
http://www.open.edu/openlearn/
The Open University's OpenLearn platform publishes a number of courses and materials produced by the Open University for open access. The aim is to publish a selection rather than the full open universities collection of courses.
This therefore fits the USU model, where a small team from the organisation helps to produce and publish a small number of courses per year.