Work on the OPML 2.0 spec
Monday, August 27, 2007 by Dave Winer.
I spent this morning reviewing the suggestions that came in last month for the OPML 2.0 spec, and doing some research for the ones I am going to attempt.
One of the questions came from Randy Morin, who wants to see examples of the category attribute. I did a little digging in the archive of this blog from late 2003 when I was working on a tool I called Channel Z, that was all about routing stuff from outlines to various buckets that would accumulate content over time.
And while the dynamic site that was "aggregating" all this categorized content is long gone, archive.org is doing a good job of preserving it. Here's the RSS category, one that I posted to a lot. You can navigate using the links at the top of the page.