[nathanbarry]

Really it comes down to proving value. The price and content doesn't matter (very much) if the value is there. People like Chris Guillebeau (http://chrisguillebeau) sell digital guides on all kinds of subjects and do well.

Though generally something that helps people make money will be easier to justify. Send me an email ([e-mail]) with more info and I'd be happy to give more detailed feedback.

[keiferski]

Great answer, I really appreciate it.