My personal favorite. Just about everything you could ask for.

Official web site of the American Cancer Society.

Everything from nutrition to birth control

Risk of testicular cancer in men with abnormal semen characteristics: cohort study.

GREAT information about testicular cancer

GREAT information about prostate cancer

General information

"The only time anybody mentions that men die eight years earlier than women is when they're telling us how women suffer from a shortage of eligible men."

Over 50 different pages of Men's information