Gittings spent 16 years working with libraries and campaigning to get positive gay and lesbian-themed materials into libraries and to eliminate censorship and job discrimination. She wrote "Gays in Library Land: The Gay and Lesbian Task Force of the American Library Association: The First Sixteen Years.", a brief history of the group. She helped start what was then called the National Gay Task Force, later to be named the National Gay and Lesbian Task Force (NGLTF) in 1973. Gittings served on the board of the NGLTF throughout the 1980s. She inspired nurses to form the Gay Nurses Alliance in 1973. She held exhibits at APA conventions in 1972, 1976, and 1978, her last one being "Gay Love: Good Medicine" that portrayed gays as happy and healthy.