Local Area Chess Clubs and Organizations
Chess Earth
Clermont County Chess Club
Dayton Chess Club
Cincinnati Scholastic Chess
Ohio Chess Association
Ohio Scholastic Chess Association
Queen City Classic

Where chess is played in Cincinnati

Chess in the City(http://www.chessearth.com/where-to-play-chess-greater-cincinnati-area.html)

Tournament Calendar for Ohio, Indiana, Kentucky

Chess Earth's tournaments calendar(http://www.chessearth.com/tournament-calendar-ohio-kentucky-indiana-.html)

Chess Federations and Organizations
USChess Federation (USCF)