Development of Creative Commons licenses

[Peter Brink <peter.brink AT brinkdata.se>]

It seems that your prime objective is to safeguard the integrity of the 
information on your wiki. If that is the case then you should not use a 
CC-license or any other open document open source license. You will 
never be able to fully control the integrity of your information if you 
allow people to re-distribute your document(s). If I were you I'd 
contact a IPR lawyer and write up an agreement between you and your 
contributors that allows you to control the set of documents that your 
wiki is made up of while allowing the contributors to retain the 
copyright to their contributions.

/Peter Brink