From the inbox:
According to <http://en.wiktionary.org/wiki/cromulent>, "cromulent" has appeared in at least two published books as well as an obituary
2006 April 10, Obituaries and In Memoriams: Benjamin Sidney Linton, Charlotte Observer:
2008, Alan M. Polansky, Observed Confidence Levels, ISBN 1584888024, page 216:2008, David A. Karp, Windows Vista Annoyances, ISBN 0596527624, page 505:
I'll send an env-econ.net bumper sticker to the first author who gets the word "cromulent" published in JEEM.