http://www.jjwdesign.com/data_mining_functions.html
http://www.phpbuilder.com/columns/dario19990616.php3
http://sg2.php.net/manual/en/reference.pcre.pattern.syntax.php
http://www.web-development-blog.com/archives/parse-html-with-preg_match_all/
http://sg.php.net/curl
http://loadaveragezero.com/dnews/howto.php
http://magpierss.sourceforge.net/
http://www.site-reference.com/articles/Website-Development/Screen-Scraping-Your-Way-Into-RSS.html