US Chess Federation- The USCF is the governing body for chess in the United States. Chess news, membership dues, correspondence chess and other chess-related items may be found on their website.
Link: http://www.uschess.org

Ohio Chess Association- The Ohio Chess Association is the official chess association for the state of Ohio. Details about upcoming tournaments and events may be found on their website, which is regularly updated.
Link: http://ohiochess.org

World Chess Federation (FIDE)- FIDE is the international overall chess organization which unites national chess federations and directs the chess world. With 156 member federations and more than 5 million registered players worldwide, FIDE is one of the largest organizations recognized by the International Olympic Committee.
Link: http://www.fide.com