The Rainbow Project

answer: 

The Rainbow Project is "a joint project of the Gay, Lesbian, Bisexual, and Transgendered Round Table and the Social Responsibilities Round Table of the American Library Association [that] presents an annual bibliography of quality books with significant and authentic GLBTQ content, which are recommended for people from birth through eighteen years of age." This site has annotated book lists from (so far) 2008 and 2009.

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