If anyone's interested, I did a small writeup of XML versus TAP on my O'Reilly blog: http://www.oreillynet.com/onlamp/blog/2007/04/xml_versus_tap.html http://tinyurl.com/2mhrog Cheers, Ovid -- Buy the book -- http://www.oreilly.com/catalog/perlhks/ Perl and CGI -- http://users.easystreet.com/ovid/cgi_course/