Money Email of the Day

A reader asks:

I've been reading your blog for a long time now and always turn to it when I want some lively and intelligent commentary on what's happening. However, I must confess that I have been, all along, mystified by your references to "Money quote."
Though I have a generally good grasp of who the pundits are, how have I missed who or what "Money" is? Is this question comparable to, say, asking Tech Support which key is the "Any Key?" (as in "Press any key...") Am I the only one who doesn't know? I guess you can't answer individual questions, but thought I'd throw you this one in case others wonder too. Maybe my son will know.

Maybe he will. How old is he?