Distributed Proofreaders  
   Web-based method of sharing the work involved in the creation of Project Gutenberg etexts. Volunteers proofread scanned books online page by page.
   http://www.pgdp.net/

Project Gutenberg of Australia  
   Collection of etexts with a focus on Australian writers and works. Also includes timelines for explorers and historical events.
   http://www.gutenberg.net.au/

Project Gutenberg "To-do" List  
   Eligible books which are not yet in the project's database.
   http://www.steveharris.net/PGList.htm

Knowledge Rush  
   Site contains Project Gutenberg etexts, including dictionaries, encyclopedias, literature and other non-copyrighted material.
   http://knowledgerush.com

David Price's Project Gutenberg In-progress List  
   Alphabetical list of books which are being worked on or have been done.
   http://www.dprice48.freeserve.co.uk/GutIP.html

Project Gutenberg  
   A huge archive of e-texts created by volunteers. Index of texts available, newsletters, articles, and information on volunteering.
   http://www.gutenberg.org/

Distributed Proofreaders Europe  
   Modeled after the Digital Proofreaders project, this variation focuses on digitization of works considered to be in the public domain in Europe.
   http://dp.rastko.net/