CARMA's MediaWiki has been successfully installed on December 22, 2006.
Consult the User's Guide for information on using the wiki software.
Somehow I mis-configured the BIMA and NEMO wiki, only the BIMA wiki works. One is supposed to be able to run two wiki's at the same time, but that didn't work.
The UMD Astronomy Computing Wiki was originally set up by Graeme Lufkin, and John Vernaleo is now maintaining this.
Also note that Mediawiki spam protection is not very good out of the box!