Zero is an international organization which provides online materials on prostate cancer. They also provide an online monthly newsletter with the latest information on prostate cancer.
American Society of Clinical Oncologists (ASCO) offers extensive information on prostate cancer on their website.
University of California at San Francisco Patient Education Documents
Some men may have a genetic predisposition to developing prostate cancer especially if they have a strong family history of prostate cancer or other cancers including breast, colorectal, endometrial, gastric, kidney, melanoma, ovarian, pancreatic, small bowel or urothelial. It is important to document your family history of cancer and share this with your physician. Here is a link to a form that may help you gather that information
The American Urological Association (AUA) Foundation offers educational materials on prostate cancer on their UrologyHealth.org website.