CloudEngine is an easy way to create a social web site for discussing and aggregating ideas and resources. It is ideal for running events and fostering discusison. It is the free, open source software that powers Cloudworks http://cloudworks.ac.uk.
More information at, http://getcloudengine.org/
Release notes, http://bitbucket.org/cloudengine/cloudengine/wiki/Releases
Installation guide, http://bitbucket.org/cloudengine/cloudengine/wiki/Install
CloudEngine is Copyright (c) 2009-2012, The Open University.
License, GNU General Public License version 2, http://gnu.org/licenses/gpl-2.0.html
See CREDITS.txt for a list of the third-party libraries incorporated in CloudEngine, and their authors and licenses.