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.orgBreast 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
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 Formation in Men 
Patient information handout concerning gynecomastia from the American Academy of Family Physicians.
http://familydoctor.org/handouts/080.html
Yahoo! Gynecomastia Forum 
Details and joining instructions for this on-line club for men with large breasts.
http://groups.yahoo.com/group/gynecomastiaforum/