This debate has gone on since June, 2004. I will say I've learned that Curriculum Vitae is singular and Curricula Vitae is plural (vitarum would mean each one refers to multiple lives)... but as far as resume is concerned, there have been professors, editors, French people, Canadians, Australians, so on, all discussing this and arguing over which dictionary is correct and so on...

It seems that, much like the required number of licks to get to the Tootsie Roll center of a Tootsie Pop... the world may never know.