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http://www.mulle-kybernetik.com/weblog/archives/000648.html
http://www.mulle-kybernetik.com/weblog/archives/000649.html
http://www.ocf.berkeley.edu/~chacha/sprite/thoughtstream/index.php?date=2003-11-16
http://www.wilcoxd.com/blog/archives/000044.html