My biggest problem with your growth extrapolations, Michael, is that in the last few years, Distributed Proofreaders has been the primary source of new Project Gutenberg books, and it's clear from their statistics that they're not putting out an exponentially increasing number of books. It may well be that PG had an exponential growth rate in the past (which is easy to do when you're starting out with production in the single digits per year, and grow to thousands per year), but that doesn't mean it's sustainable. Explain to us how you're going to get the labor to validate the ebooks produced, or how the OCR will become reliable enough to skip the validation process, and then we'll believe that you can sustain the growth rates seen when Project Gutenberg's main source of new books when from a few hundred (if that many) dedicated individuals, to about 5000 Distributed Proofreaders.