@ Mr. Verb,
So there seems to be this new use of the @-sign in Facebook World, where if you want to address a response to someone's comment you prefix their name with "@". Kind of like "I'm directing this comment at so-and-so"? Any idea where this comes from?
p.s. I searched on Language Log, since they have always already discussed every topic, but when I searched for "@" my computer's head exploded.