Full Reading List:

Weeks 1-3     "As A Man Thinketh"  by James Allen (Public domain; Julie M. provides audio version for free here. You must be logged in to facebook and be invited to the 90-day group to view this link.  Josh Connell pointed out the ebook is free through amazon and gutenberg.org)
Weeks 4-5     "Beach Money" by Jordan Adler (Website: http://beachmoney.com)
Weeks 6-7     "Jackrabbit Factor" by Leslie Householder (available for free from the author here)
Weeks 8-9     "The Slight Edge" by Jeff Olson
Weeks 10-11  "Making the First Circle Work" by Randy Gage
Week 12        "Learning the Business" by Michael Clouse