I've recently drafted up "Extending RSS 2.0 With Namespaces":

http://www.disobey.com/detergent/2002/extendingrss2/

It's rough, quick, and dirty. I'm actively
taking suggestions on improving it. It's a
low-tech document - nothing, actually, like
the RSS 1.0 document of similar notation.

--
Morbus Iff ( HOW DO I DELIT TEH TREE FILEZ?!@! )
Culture: http://www.disobey.com/ and http://www.gamegrene.com/
Tech: http://www.oreillynet.com/pub/au/779 - articles and weblog
icq: 2927491 / aim: akaMorbus / yahoo: morbus_iff / jabber.org: morbus