While you're mentioning the Internet Archive, you might also recall that our advertised purpose is to digitize all the world's knowledge :-) I just had a chat

While you're mentioning the Internet Archive, you might also recall that our advertised purpose is to digitize all the world's knowledge :-) I just had a chat with our book guy today about OCR corrections using captchas, one of our volunteers suggested it. We expect to scan 500,000-700,000 books this year.