Every Friday I take the initiative to search through thew newly free titles on Amazon, and to identify those that might be of interest to trans* readers, fans, and lovers. Even if you don't have a Kindle, you can still download the titles through one of Amazon's free reading applications, and covert it (if need be) with Calibre. I can tell you I do most of my reading on my iPad, using Kindle for iPad, and it works beautifully.
Please do be sure to check the price before downloading anything, though, as most freebies are limited time offers, and some are specific to certain regions.
Dickgirl Diaries Collection 1 (Futa on Female) (Transgender Gender Swap / Bending / Switch)
Dickgirl Diaries 7: Taken with the Futa's Big D - Alive with Innocent Desire
CALLY AND MISSY; The Fairy Tale Continues (A sissy maid missy bad boy series, part fifteen)
Slavery: Part 1 Captured! : A Femdom Tale of Abduction, BDSM, Female Domination and Medical Fetish (Slavery Series)
First You Have to Earn Me: A tale of female domination...
Futa's Discovery (A Futa and Her Dragon 1)(Futa-on-Female, Dragon, Supernatural, Fantasy, Cuckolding Erotica)
The Triumphants and The Infradigs (Spring of Reincarnation)
Bi Sexy: Queer Triangle Fantasy Erotica (LGBT Lovers Other-when Book 0)
From womanizer to woman: A gender transformation romance.
DIAMOND IN THE ROUGH
Memoirs of a Feminized Slave Part 1
The Shaming of Kyle Part 1
Changed and Taken
Pegged by the MILF (Femdom Strapon Erotica) (Blackmailed into Chastity Book 1)
Sissified: Male to Female Transformation