I'd been tempted to ask him to check out FoRK; however, his method
of adding new bits to old might be a bit too literal for Mr. Rifkin.
-Dave
(Un)fortunately, Mark's heyday appears to have been before the reach of
DejaNews or AltaVista, so you'll have to dig around on:
<http://www.sincity.com/penn-n-teller/pcc/shaney.html>
<http://www.notam.uio.no/~mariusw/c-g.writing/>