OK, by now you are probably getting it that this is still a relatively young site; the staff (me) is researching worth while groups for support in various situations. Obviously the American Cancer Society is a good resource to find specialized help in different fields however I would like this to be another source of information. There needs to be a little bit of lateral thinking from time to time, some of the groups to be referred to in this page will offer alternative ideas and others will be considered for their straight up medical advice.
A site on the web that offers a lot of support from many directions is www.cancervictors.net
Prostate cancer
Brotherhood of the baloon offers some insight to proton beam threapy for prostate cancer
A word to Viet Nam vets; prostate cancer is an assumed connection to agent orange, talk with your advocate about this.
The place I purchased laetrile was apricotpower.com this comes from Mexico, (interesting that we can buy tobacco but not an herbal treatment in the U.S.) Laetrile should be investigated prior to use, there are several natural products that contain laetrile such as apricot seeds, blueberries, and peaches.
Breast cancer-
www.cancernews.com/bcs.htm is a page loaded with information about different organizations and networks
It is not always possible to do all the research necessary to answer your questions, there is a forum that I have found very helpful with a lot of folks who have done extensive research on several different ailments. This site is Healingwell.com forum it is well worth the effort to check it out