We're a bit late on this, but in January the Gay, Lesbian, Bisexual, and Transgender Round Table (GLBTRT) of the American Library Association (ALA) released the 2013 Rainbow List. The GLBTRT strives to serve "the information needs of the gay, lesbian, bisexual, and transgender professional library community, and the gay, lesbian, bisexual, and transgender information and access needs of individuals at large" (from
this website). We're only posting the Top Ten, but you can see the full list
here.
Below are the Top Ten of the 2013 Rainbow List (in alphabetical order by author last name):