Providing an online program and educational and informational programs that provide users a behavioral change program and system for improving health, wellness, and healthy weight; personalized plans for goal-setting and achieving goals; social network support; behavior management tools; plans and software for choosing and reinforcing behaviors to support behavior modification and lifestyle changes; a web-based weight loss program; a personalized action plan; accountability tools and support in achieving goals; questionnaires; information; inspirational messages; scientific and research information; peer groups; support teams; creating customized online pages for users with user-defined and program-defined information; personal profiles; customized plans; messages of the day; an online check-in and journaling system; creating an on-line community for registered users to participate in discussions, get feedback from their peers, form virtual communities, and engage in information and tools to achieve positive lifestyle change and behavior modification