Circumcision Information and Resource Page (CIRP) provides information relating to the penis and the effects of circumcision. This page illustrates the intact penis and how the foreskin functions. The page also illustrates a circumcised penis. The gliding mechanism of an intact penis is also illustrated, along with information on the effects of circumcision on sexual intercourse.

The Embryo Development web page graphically shows the external genital changes in fetus development. A comparison is made between male and female genital development of the fetus.

Circumstitions.com page illustrating the anatomy of an intact penis. The illustration is interactive and clicking on parts of the penis will present information on that part. The page has links to an animated illustration of the foreskin retracting and extending. There is also a link to illustrations of the embrionic development of the male and female genitals.

An article in eMedicine about pearly penile papules (PPP). Pearly penile papules are small dome-shaped skin-colored papules that often are located on the sulcus or corona of the glans penis. Commonly, pearly penile papules are arranged circumferentially in one or more rows. They are considered to be a normal feature and are harmless.

This video is from the UK company that makes the SenSlip, a manufactured artificial foreskin designed to protect the mucosa so it will shed the keratinized skin. The SenSlip is a fast fix to de-keratinize the penis. Using the SenSlip is useful to quickly show men the benefits of covering the penis with a foreskin by letting them experience more sensation. Many men decide that it is worth the time and effort to restore their foreskin (growing new skin) by applying tension.