Abstract: A method of doing business using on-line knowledge and skill-based gaming wherein a multiplicity of users play simultaneously and where revenue is generated based on the number of players who visit the website where the game is hosted and played.

Abstract: A method of doing business wherein music gaming is used for on-line promotion of business. The business may be on-line music sales, on-line entertainment, on-line advertising, and combinations thereof. The music games use trivia-based games that include genre-specific categories from which questions can be drawn. These categories include categories relating to musical styles, such as jazz, rock, and blues, and other categories, such as advertising, products, time periods, musicians, musical groups, and nationalities.