Over at CommunityServer.org there's a discussion about tagging. I'm trying to figure out what technorati.com picks up. They say you can add <category> entries to your RSS (CS info), but that doesn't seem to be getting picked up. You can also add tags through HTML anchors with rel="tag". I'm going to try a few of both on this post and see which ones technorati picks up.
Tags: technorati tagging rss dyer