(22 Apr 2011)
"To: Andrew G Re: Former Mormons"
You may want to start with Utah Lighthouse Ministries (http://utlm.org/), one of the best established "mission-to-Mormons" groups. Also, the Exmormon Foundation has a large collection of "leaving Mormonism" stories (http://exmormon.org/phorum/list.php?3). Be warned, however, that the vast majority of people who leave Mormonism end up as atheist or agnostic.