1. The traditional 15-point side-out volleyball scoring system was changed in 1999 by the Federation Internationale de Volleyball (FIVB) to the current 25-point "rally point" system.
2. The indoor volleyballs used at the 2008 Olympics in Beijing were the first to use a new moulding design in lieu of stitching. The 2008 official Olympic volleyball is softer and provides a higher bounce and a more stable orbit.
3. The indoor volleyball net systems for sale at VolleyballHeadquarters.com include nets that meet all college (NCAA), high school (NFHS), and national (USVBA) specifications and can be converted to meet international systems.
4. According to the American Dietetic Association, a 130-pound player burns 8.4 calories per minute of vigorous volleyball play, and a 180-pound player burns 10.4.
5. When volleyball was invented in 1895, it was called Mintonette. The first volleyball nets were 6 feet 6 inches high, while today's nets are 7 feet 11 5/8 inches for men and 7 feet 4 1/8 inches for women.
6. A number of different games can be played using indoor volleyball nets. These include Newcomb ball, in which players can catch the ball, and a Brazilian game called footvolley, in which players use their feet, chest, head, and shoulders instead of their hands and arms.
7. Volleyball is played by more than 800 million people worldwide, making it second only to soccer as the world's most popular sport.
8. According to FIVB's international regulations, the standard weight for an indoor volleyball is between 9 and 10 ounces, though volleyballs are often heavier or lighter.
9. Volleyball post pads are a smart investment in player safety, and are available in a wide variety of colors.
10. More than 400,000 girls play high school volleyball in the U.S. Indoor volleyball is also the second most popular women's sport in the NCAA.