The GLTBQ organization on campus (formerly known as the "Eph Rainbow Alliance"). Especially known putting on the out-of-control Queer Bash parties every fall and spring. They also bring guest speakers to campus to speak on queer and LGBT issues, hold more or less weekly discussions, do film screenings, and serve as a network of support for GLBTQ students.
Meetings are Thursday nights (when announced) at 9PM in Hardy House. All are welcome, and there are frequently snacks.
The current 2008-2009 board consists of Johannes Wilson '11 (co-chair), Raff Donelson '09 (co-chair), Veronica Rabelo '11 (Event Coordinator), Joshua Goldberg-Sussman '09 (Event Coordinator), Jonathan Schmeling '12 (Publicity Coordinator), Jack Wadden '11 (Political Action Coordinator), Kaybi DiAngelo '11 (Secretary), and Chelsea Luttrell '11 (Treasurer).
Questions can be directed to the secretary, at kbd1.
Check out their website.