- Guttmacher Institute
- www.guttmacher.org
- Affiliate of pro-choice Planned Parenthood Federation of America. Researches issues related to sexuality, reproduction, contraception, and abortion. Publishes a journal called Family Planning Perspectives.
4.3
(si*)
>1450
- It's Your Sex Life
- www.itsyoursexlife.com
- Information and facts about sex and contraception. Provided by M-TV.
4.2
(si*)
>4400
- American Association of Sex Educators, Counselors and Therapists
- www.aasect.org
- AASECT is a professional organization of sex educators, therapists and counselors.
4.2
(si*)
>870
- San Francisco Sex Information
- www.sfsi.org
- Online information and referral switchboard providing anonymous and accurate information about sex.
3.9
(si*)
>300
- Sex Your Brain
- www.spermbrain.com
- Sex trivia questions, quizzes, tests and surveys unravel the scientific mysteries of human sexuality.
3.7
(1)
>180
- Encyclopedia of Sex and Sexuality
- www.sexuality-encyclopedia.com
- The official online version of Dr. Ruth Westheimer's Family Encyclopedia of Sex.
3.3
(si*)
>10
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