Basic Volleyball Rules - Contains 100 question on basic volleyball rules with answers. - http://basic-volleyball-rules.com/
Capitol Chapter of PIAA Volleyball Referees - Event calendar, program information and links to officiating articles from this Harrisburg, PA area organization. - http://eteamz.active.com/midpennvbrefs/index.cfm?
Todd's Volleyball Page - Information on volleyball rules and equipment. Features a photo gallery and court construction details. - http://www.vbref.org/
40 Situations - Typical officiating situations and appropriate rulings according to National Federation of High Schools. - http://home.earthlink.net/~tfakehany/40situations.html