XSLT is one of the most powerful aspects of the entire XML value proposition (this weblog site is an example of what XML and XSLT can deliver), but is also one of the more daunting aspects (both hands-on and getting your brain wrapped around the syntax). Here is a really nice
XSLT tutorial site.
Demystify XSLT, and the world of XML's potential really opens up. It certainly accelerates the comprehension to the concept of
generating RSS from internal data sources - bearing in mind that in the case of
Virtuoso we use our in-built XSLT processor for facilitate XML-RPC to SOAP bridging, SQL-XML, RSS, OPML, RDF, FOAF, Atom|Echo, OCS feed generation amongst other things.