A group of former Capella.edu leaders has created Sophia.org. They have a community-based learning and teaching model with checks built in for academic quality. Compare it with P2PU.org with its roots in the not-for-profit Mozilla Foundation.
Sophia.org encourages authors to use Creative Commons Licenses to encourage reuse and remixing. I don't understand their business model and can't find much about it on their site or in reviews. Here, I test the OpenAttribute tool to see how their licenses are represented:
Work found at http://www.sophia.org/packets/creating-a-learning-packet-publishing / http://creativecommons.org/licenses/by-nc/3.0/us/
It captures institutional information but not authors. Will that provide the necessary incentive to participate?