Teaming up to cover the Net's footbag universe, Jim Curtis and Steve Goldberg's Footbag Worldwide is quite simply the place to start for players of the game sometimes called 'Hacky Sack.' Users can access rules for the sport's four variations, tips and techniques, and lists of clubs and leagues. Footbag Worldwide also provides a calendar of events, tournament results, multimedia, information on joining an email list, software for contest judging, and, of course, links to footbag pages. Curtis and Goldberg have authored many other footbag sites, but this one is the most comprehensive.