I asked Joel about Nomic Wiki and it turns out e is in the process of migrating the whole thing to MediaWiki.
E asked me if I wanted to help, and with his permission I'm passing on eir message. "What needs doing is for someone (or possibly, many someones) to look at all of the pages, checking whether the conversion worked and, if not, fixing them up. One thing I know needs to be done is to convert a few of the pages into MediaWiki categories, and then do the same on all of the Nomic Database pages which use those categories." If anyone is interested in helping his address is uckel...@nomic.net -- Charles Walker