The AssociationOfLispUsers maintains a CommonLispWiki "for all users of Lisp-family languages to add information to, and especially for information relevant to the ALU or that will some day be published on the official ALU web site".
Due to spam reported to have come from the far east and the persistance of posting from it, The sites editing facilities have been disabled, and it may be shut down shortly. (20050117)
It's August 2007, and the ALU Wiki seems to be up and world-editable, at least in the sandbox.