Yahoo! Gynecomastia Forum
- Details and joining instructions for this on-line club for men with large breasts.
- http://groups.yahoo.com/group/gynecomastiaforum/

Breast Formation in Men
- Patient information handout concerning gynecomastia from the American Academy of Family Physicians.
- http://familydoctor.org/handouts/080.html

Adolescent Gynecomastia
- Provided by keepkidshealthy.com. Provides parents information about the occurrence and correction of this condition in their children.
- http://www.keepkidshealthy.com/adolescent/adolescentproblems/gynecomastia.html

Breast Reduction Surgery in Men
- Michael Berman M.D. provides in-depth information concerning gynecomastia's origins and surgical treatment.
- http://www.plasticsurgery4u.com/procedure_folder/male_breast/index.html

Gynecomastia.Org
- Provides information and support for men affected by gynecomastia around the world. Links to research, current findings and physicians who can help.
- http://www.gynecomastia.org