Step up to the Internet and check out the sites of several national groups that offer a listing of clubs in each state. They include the Road Runners Club of America, Cool Running and the Running Network. Click on the "running clubs" link. Each site provides a statewide listing of clubs, including contact information for each club or group.
Visit or contact your local recreation center or your town's parks and recreation department. Oftentimes these groups can provide information about local races, events and clubs.
Go to the local running shoe store in your neighborhood and talk to the owner or manager. Most athletic shoe stores advertise local road races, can provide contact information for area running clubs or groups and have the scoop on weekly group runs. Sometimes these stores even sponsor runs for local groups.
Sign up for a local road race or contact the race organizers. One of the best ways to find other runners is to be with others and a race provides a ready venue. Most local races are organized by local runners, groups or clubs.