An interesting experiment being organised by Demos, the left of centre think tank, as explained on their blog. They have produced the skeletal structure of a document and then posted it onto a wiki. Anyone can register on their website, and then edit the wiki, and so contribute to the creation of policy ideas. It will be really interesting to follow the project and see how it works out. The idea of open source policy making follows on from the release of a Demos publication last Friday, The Collaborative State.
Incidentally, for a theoretical take on how such processes work, this post on my own blog may be of interest.