Hey biggie! you might be aware of this already, but anywayz.. theres this VB addon that can integrate both VB and Mediawiki:
vbWiki Standard - vBulletin+MediaWiki integration - vBulletin.org Forum
More about Mediawiki here:
MediaWiki - MediaWiki
I think that would be the best way to do an online collaboration for all the CE projects, amongst other things.