Parents and Friends of Gays and Lesbians (PFLAG)
http://www.pflag.org/
PFLAG promotes the health and well-being of gay, lesbian and bisexual persons, their families and friends through support, education, and advocacy. They provide counseling to help straight family and friends accept and support their gay and lesbian loved ones, and organize grassroots efforts to end discriminatory practices toward gays and lesbians.