Norm Wolcott writes:
There is no doubt that the Open Book Project of Brewster Kahle has the most accurate books online. However they have only 1000 books. The million books project I would rate just barely above google books in quality and completeness. It also helps if the page is not turned before the scan is complete. The US is doing very well in providing a large number of useless images online.
What is the URL for this archive? When I searched Google, I found an "Open Book Project" at ibiblio, but it seemed to have almost nothing there, and it looked like it wasn't from scans anyway. If you're referring to the "Open Content Alliance", I'd love to see a URL for find its archives. Internet Archive doesn't seem to have a category for OCA texts yet.