[Air-L] origins of "an internet year is like a dog year"

Does anyone know the origins of this phrase. I've heard it so long, I don't have a clue as to where it came from. I need a proper citation to keep a journal editor happy. thanks, Barry Wellman _______________________________________________________________________ S.D. Clark Professor of Sociology, FRSC NetLab Director Department of Sociology 725 Spadina Avenue, Room 388 University of Toronto Toronto Canada M5S 2J4 twitter:barrywellman http://www.chass.utoronto.ca/~wellman fax:+1-416-978-3963 Updating history: http://chass.utoronto.ca/oldnew/cybertimes.php _______________________________________________________________________