Mild-mannered librarian by day. . . slightly less mild-mannered librarian by night.
Did you send them in the direction of FPN?
Given that you read 8 bajillion library blogs, you're probably already aware of The Language Log, but this is a good opportunity for me to give it a plug:http://languagelog.ldc.upenn.edu/nll/A couple of weeks back, they had a spirited discussion on the proper spelling of the newly popular phrase "I'ma".