American Therapeutic Recreation Association
www.atra-tr.org

Carlisle Chess Club
www.carlislechess.org

Dana Farber Cancer Institute
www.dfci.harvard.edu

Hebrew College
www.hebrewcollege.edu

Swiss Sys Software

www.SwissSys.com

U.S. Chess Federation
www.uschess.org

Watertown Boys and Girls Club
www.watertownbgc.org

World Chess Federation
www.fide.com