Interested in LGBT advocacy, but not sure where to look? Check out these organizations (this list is not restrictive!):

Congressional LGBT Equality Caucas (DC)
Family Equality Council (Boston)
Freedom Oklahoma
Gay, Lesbian, Straight Education Network (GLSEN) (NYC and Chapters)
Gay & Lesbian Victory Fund and Institute (DC)
GLAAD (LA, NYC)
HRC (DC)
Immigration Equality (NYC)
Lambda Legal (NYC)
Matthew Shepard Foundation (Denver)
National Center for Lesbian Rights (DC, SF)
National LGBTQ Task Force (DC, NYC, Boston, LA)
PFLAG (DC & Chapters)
The Trevor Project (LA)
The Tyler Clementi Foundation (NYC)
National Center for Transgender Equality (SF)
Transgender Law Center (DC)
LPAC (DC)
Equality Federation (SF)
Williams Institute (LA)
National Gay and Lesbian Chamber of Commerce--NGLCC (DC, NYC)
Out & Equal (SF)