IBM's Developerworks is one such site, and publisher O'Reilly and Associates has a daunting array of articles on the subject, as well as XSL books. www.w3schools.com/xsl <a href="http://xml.coverpages.org/xsl.html#resources">http://xml.coverpages.org/xsl.html#resources</a> Rates of pay XSL is used with all mainstream development skills - Active Server Pages, Visual Basic, Java, Perl and other scripting languages.