I came across this list on a website some time ago. No guarantees that they are still valid. Let me know of any additional sites via comments or the feedback form and I’ll add it. (Updated: July 3, 2015)

• http://www.authorsden.com
• http://www.topbookreviewers.com
• http://www.polkadotbanner.com
• http://www.booktrade.info/index.php
• http://www.gather.com
• http://www.ebookheaven.co.uk/directory.html
• http://receivedtext.org/
• http://www.shelfari.com
• http://www.goodreads.com
• http://ebooks.searchking.com/
• http://www.ebookpalace.com/
• http://www.librarything.com
• http://www.weread.com
• http://bookbuzzr.com/
• http://www.published.com/
• http://www.ebookjungle.com/
• http://www.free-ebooks.net/
• http://www.mindlikewater.com/
• http://www.e-book-zone.com/ebookstore.htm
• http://www.ebookheaven.co.uk/forum (free ads forum)
• http://www.ebookfreeway.com/
• http://www.bookdaily.com (print out bookmarks w/your book on them)
• http://www.waenetwork.com (Writers, Agents & Editors Network)
• http://www.spbroundup.com/submit-info-about-your-spb-2
• http://bookpinning.com/?sws=home/submit-book&status
• http://authorsdb.com/

Your Amazon Author Page in every market you hope to sell into! Here’s how to set these up.

Happy listing!