That was very much part time, I could knock out 100 tweets in 10 minutes. I would block them in 4-5 periods a day. It's incredibly quick, easy work.

I'm assuming this is hyperbole, since that actually turns out to be like a question answered every 6 seconds -- but what kind of questions were you answering in volume like that? I'm curious because it seems to have had such a large impact on your bottom line.

People were discussing and asking questions about a book at a constant rate, and I would catch up every few hours. It's not hyperbole.