GLBTQ.com: An Encyclopedia of Gay, Lesbian, Bisexual, Transgender, and Queer Culture (archived August 1, 2015), contains 2,000 signed articles on literature (including author biographies), the arts, and the social sciences written by academics and other experts.
View online the exhibition Nazi Persecution of Homosexuals, 1933-1945, sponsored by the United States Holocaust Memorial Museum
The following educational and non-profit portals provide credible publications on a wide variety of topics related to LGBTQ history and literature. The articles, reports, and other sources available from these sites can often be used for academic research, that is to obtain authoritative background information, scholarly secondary research, and digitized primary sources.