- Records and personal papers of local LGBT activists, organizations and political campaigns
- Virtually all San Diego and Tijuana (and some significant regional or national) LGBT periodicals, most of which are not available elsewhere
- Newsletters for more than 40 local LGBT organizations
- Video and tape interviews, LGBT music, educational films, and footage of numerous Pride parades.
- Ephemera such as flyers, announcements, bumper stickers, buttons, calendars, catalogues, flyers, posters, and t-shirts,
- Thousands of photographs and slides
- Digital materials and records
- Over 2000 books (which members can check out)