Capitol Chapter of PIAA Volleyball Referees  
   Event calendar, program information and links to officiating articles from this Harrisburg, PA area organization.
   http://www.eteamz.com/midpennvbrefs/

Professional Association of Volleyball Officials  
   Information from this professional association organization dedicated to training and certifying volleyball referees.
   http://www.pavo.org/

40 Situations  
   Typical officiating situations and appropriate rulings according to National Federation of High Schools.
   http://home.earthlink.net/%7Etfakehany/40situations.html

Todd's Volleyball Page  
   Information on volleyball rules and equipment. Features a photo gallery and court construction details.
   http://www.vbref.org/

Heartland Volleyball Officials Association  
   Meeting schedule and minutes, as well as membership information, high school officials in central Illinois.
   http://www.homestead.com/hvoa_vbrefs/

Volleyball Officials Online Database  
   Cooperative effort between the Professional Association of Volleyball Officials and the Officials Division of USA Volleyball, working to improve the state of volleyball officials and volleyball officiating.
   http://www.vbofficials.net/

National Federation of State High School Associations  
   Official high school rules listing and interpretation for volleyball. [PDF]
   http://www.nfhs.org/scriptcontent/va_Custom/va_Cm/newspage.cfm?category_ID=28