FreeCSD is the grad student social organization for the Computer Science Department. We get funding from the Graduate Student Assembly to put on social events such as the Black Friday TG and the weekly departmental tea. We are always looking for more grad students to volunteer and help us put on these events.
You can reach us at free-csd at cs.
(You might also be interested in Dec/5, which is the grad student social organization for the whole School of Computer Science.)