I've been playing with XML::LibXML to parse HTML, and boning up on my XPath to crawl through typical web pages. Here's a little snippet showing them in action. It prints the rank (1-25) of my Learning Perl in sales.
perl -MLWP::Simple -MXML::LibXML -e 'print XML::LibXML->new->parse_htm
+l_string(get "http://www.oreilly.com/catalog/top25.html")->findvalue(
+q{//text()[contains(., "Learning Perl")]/ancestor::tr[1]/td[1]/text()
+})'

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In reply to Get the current rank of Learning Perl in O'Reilly's top 25 books by merlyn

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