They accept unsolicited manuscripts and proposals on all LGBT-related topics. They are especially looking for work on these themes:
-- Forgotten History: From a Civil War bromance to a lesbian prison riot
-- The Kink Issue: Alternative sexualities
-- Ethnographic Journeys: LGBT lives in non-Western cultures
They also welcome suggestions. They accept feature pitches/features (2,000 to 4,000 words), as well as work for various sections/columns and reviews. Some sections are unpaid. They pay $250 for feature articles, and writers of full reviews can request $100 payment (see guidelines). Details here.