MetaLex: The Code and The Law

You must have heard the saying: if you have an idea, there is already a site about it on the web.  If you have an original idea, then there must be at least ten sites about it.

I googled for 'legal engine' and I found MetaLex.  This seems to be an XML legal ontology that could be a first step towards Executable Law.  This paper details some of the concepts.