Sex Dictionary
- A glossary of sex words and phrases listed in alphabetical order. Viewers can also submit definitions.
- http://www.thesexdictionary.com/

Sexology Professor
- An open-content dictionary of sexually related terms.
- http://www.sexologyprofessor.com

Encyclopedia of Sex
- Describes in detail words pertaining to sex and sexual content. Site users can view and also submit words.
- http://www.encyclopedia-of-sex.com

History of Sexuality
- A time line of sexuality information from pre-history to the recent sexual revolution. Includes a message board for topic discussions.
- http://www.historyofsexuality.com

Vagina Vérité
- Articles and discussions exploring a variety of vagina and vulva topics.
- http://www.vaginaverite.com/

All About My Vagina
- An extensive site covering all aspects of the female genitalia.
- http://www.myvag.net/

All About My Penis
- The story of one man's penis and testicles, relating his experience of penis size and health, masturbation, sex, making love, with information on male sexual health, orgasm, and ejaculation.
- http://www.my-penis.org/