Something else that is also highly cool:

Distributed Proofreaders: This site provides a web-based method of easing the proofreading work associated with the creation of Project Gutenberg E-Texts. By breaking the work into individual pages many proofreaders can be working on the same book at the same time. This significantly speeds up the proofreading/E-Text creation process. When a proofer elects to proofread a page for a particular project, the text and image file are displayed on a single webpage. This allows the text file to be easily reviewed and compared to the image file, thus assisting the proofreading of the text file. The edited text file is then submitted back to the site via the same webpage that it was edited on. Once all pages for a particular book have been processed the Project Manager joins the pieces, properly formats them into a PG E-Text and submits it to the PG archive.