City of O'Fallon: Official municipal web site. Contains city information for residents and visitors.
Main Street O'Fallon: Established to improve the quality of life in downtown O'Fallon through concentrated economic restructuring, organization, promotion, and design.
O'Fallon Chamber of Commerce: Information on chamber activities and membership. Includes a member directory.
O'Fallon Illinois: Information on the city, parks, recreation, schools, and businesses.
O'Fallon Public Library: On-line library resources including kids, about us, services and related library information.
Speed of Life Photography: O'Fallon Illinois company that specializes in children's portraiture.