American Cancer Society:  Not-for-profit site provides comprehensive overview of all types of cancer, with specific information about bladder cancer statistics.

Cancer Consultants: Cancer Consultants is dedicated to providing the most up-to-date cancer information on the treatment and prevention of cancer for patients and professionals.

Center Watch:  Provides information about clinical trials for a variety of diseases.

National Cancer Institute:  Part of the National Institutes of Health, provides an overview of cancer treatments and statistics.