R.P.M the Yo-Yo Center [ Kids/Teens/Mature Teens ] - Includes message board, chat room, directory of clubs organized by location, and a directory of links.
YoYo Activities [ Kids ] - Explore some important scientific concepts.
YoYoinfo.com [ Kids/Teens/Mature Teens ] - Includes a glossary, FAQs, and Who's Who. Also features world and national champions information.
Yo-Yos.net [ Teens/Mature Teens ] - Features information, grading scale, history, top prices paid at auction, world records and champions, and tips.
