» History of the Yo-Yo    Learn about the past and present of the yo-yo.    http://www.spintastics.com/HistoryOfYoYo.asp

» Museum of Yo-Yo History    Archive of historical yo-yo images, profiles, memorabilia, and information.    http://www.theyoyomuseum.com/

» National YoYo Museum and Contest    Information, rules and competitions' results, pictures and historical data.    http://www.nationalyoyo.org/

» The History of Toys and Games Yo-Yo Exhibit    A History Channel article on yo-yo history.    http://www.history.com/minisites/toys/

» The History of the Yo-Yo    About.com article by Mary Bellis.    http://inventors.about.com/library/weekly/aa120297.htm