Human Sexuality Collection (Cornell University)
The Kinsey Institute for Research on Sex, Gender and Reproduction
James C. Hormel Gay & Lesbian Center at San Francisco Public Library
Gay Pulp Fiction Collection at Brown University (online searchable database)
Lesbian and Gay Manuscript Collections at NYPL
Canadian Gay and Lesbian Archives
LGBT Religious Archives Network
The National Archive of Gay, Lesbian, Bisexual and Transgender History
Gay on the Range - an archive of gay pulp fiction covers from the 1950s and 1960s
Gender Equity Collections (Central Connecticut State University)