"TransTorah helps people of all genders to fully access and transform Jewish tradition, and helps Jewish communities to be welcoming sanctuaries for people of all genders."  They offer rituals and ritual assistance, essays, sermons, poems, videos and art.

Transitioning: The Halakhic Ramifications: on Jewish Mosaic.

Joy Ladin:First trans teacher at Yeshiva.  She doesn't seem to have her own web page, but her work is googleable and she does have a Facebook profile. 

Rabbi David Dunn Bauer, of Queer Spiritual Counseling.  A wonderful resource for queer and trans folk of all sorts; an excellent theologian. "Because God is Queer and so is the Universe.  Come, join me in the conversation.  Let's talk about God. Let's talk about you."