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.

An extensive site covering all aspects of the female genitalia.

Information on the anatomy, histology, physiology and pathology of the vagina. Part of the ALtruis Biomedical Network.

Describes in detail words pertaining to sex and sexual content. Site users can view and also submit words.

A time line of sexuality information from pre-history to the recent sexual revolution. Includes a message board for topic discussions.

Sexuality encyclopedia that quotes popular online resources.

A one-page treatise on the attitudes of Russian women about sex.

A thesaurus of sexual terms and their street slang equivalents.

A database of articles about all aspects of sexuality.

Articles and discussions exploring a variety of vagina and vulva topics.