Tau Kappa Epsilon - Official Site: The world's largest social fraternity. With more than three hundred active chapters in the United States and Canada, Tau Kappa Epsilon International Fraternity has a reputation of excellence worldwide

Theta Chi Fraternity: International Headquarters: The official homepage of Theta Chi, founded April 10, 1856 at Norwich University (Norwich, Vermont)

Theta Delta Chi: Official site of the international collegiate social fraternity. Includes links, a history of the fraternity, scholarship applications, policies and news

Triangle Fraternity National Home Page: A social and academic fraternity comprised of engineers, architects, and scientists