2. CCD Program: This program will be directed by counselors from Healthways, Inc., a company that assists individuals in managing their medical problems. All contacts will occur by phone, e-mail, or the Web; there will be no in-person visits. Participants will be able to review weight loss information on the study Web site. For Months 1 to 3, participants will contact their counselors each week. For Months 4 to 6, contact with study counselors will occur at least once a month; after Month 6, contact with study counselors will occur every other month. Participants will keep a food and exercise diary and they will enter their weight and calorie consumption on the study Web site. Study researchers will provide participants' doctors with relevant information on participants' weight loss.