Advocates for Youth: www.advocatesforyouth.org

American Association of Sex Educators, Counselors and Therapists (AASECT): www.aasect.org

American Social Health Association: www.ashastd.org

The National Campaign: www.teenpregnancy.org

National Education Association-Health Information Network:http://www.nea.org

Planned Parenthood Federation of America:http://www.plannedparenthood.org.

Sexuality Information and Education Council (SIECUS):http://www.siecus.org.

Society for the Scientific Study of Sexuality: www.ssc.wisc.edu/ssss/

The Alan Guttmacher Institute: www.guttmacher.org