The Internet has impacted health care. With the introduction of the personal health record (PHR), patients have an opportunity to track their physician visits, medications, and laboratory values online in a pleasant and informative learning environment. The PHR is a secure, online, Internet-accessible method of storing and easily retrieving health information about one's medical history, physician visits, laboratory values, and medications. The American Association of Kidney Patients (AAKP) has taken the leadership role in developing a PHR for patients of the kidney community. There are several barriers that patients experience when using the Web for health resources. These include inaccurate or self-serving information and marketing statements that can be misleading and dangerous. Poorly written or inappropriate information for patients can be problematic, as can an abundance of extraneous information. For the most part, the public often has no way to judge what is and is not credible based on the context of the article alone. This article gives the reader a review of several Web resources that are available for patients and also for renal professionals. They are largely from large nonprofit organizations like the AAKP, National Kidney Foundation, Medical Education Institute, American Society of Nephrology, or The Nephron Information Center (nephron.com). This article also reviews sites from The National Kidney Disease Education Program, Hypertension-Dialysis and Clinical Nephrology, National Institute of Diabetes and Digestive and Kidney Diseases, and DaVita.