Over the last week I and several others have been working on building a Crusader Kings II wiki.
The goal has been to create a repository of knowledge covering all important CKII concepts, as well as including things like patch logs, mods, and community figures.
We now finally consider it ready for release. While not everything is finished yet, the most important pages are there.
We'd like to welcome the public to peruse the contents of the wiki, and contribute where they see fit.
The wiki can be visited here.