I could reimburse you for the cost of photocopying and postage. This is a major bottleneck right now. You could format a book in Microsoft Word that is currently only available as a text file. The formatting involves applying paragraph styles appropriately, handling footnotes, etc. When the book is formatted in Word, it can be saved in RTF format and automatically converted to HTML, text, postscript, etc.
Guidelines are available.
Type a book I will send you a photocopy of a good public-domain book. You type it and send back the electronic version. Your time as a typist will be best used by typing something that wouldn't scan well. If you have a scanner and OCR software, I could again send you a photocopy of a book to work on. After scanning and OCR, you could spell-check the book, format it, and print it out.