Abstract: Some embodiments provide a method of determining whether a lottery player or the player's computer is within a particular location. The player's computer is connected to a computer network. The method transmits, through the computer network, a pass code and a telephone number to the lottery player's computer. The method requests the lottery player or the player's computer to call the number and provide the pass code within a pre-determined amount of time. The method determines whether the pass code is provided within a predetermined amount of time after the transmission of the pass code from a telephone specified to be within the particular location. The method verifies whether the lottery player or player's computer is within the particular location, based on the determination.

Abstract: Some embodiments provide a method of presenting a game show through a computer network. The method presents an item to a number of contestants through the computer network. The method asks the contestants to answer through the computer network a question about an attribute of the item. The method also rewards a contestant that provides an acceptable answer to the question. Some embodiments provide a method for presenting a game show over a computer network including receiving, through the computer network, a request from a contestant to register for a game show. The method determines whether the contestant can register for the game show. The method also provides the contestant with a time interval for registering for the game show upon determining that the contestant cannot register for the game show.

Abstract: Some embodiments provide a method of electronic shopping through a computer network. The method presents, on a display of a computer system, a three-dimensional scene that represents a shopping destination. The three-dimensional scene includes multiple selectable objects and multiple non-selectable objects. The method also allows a user of the computer system to browse the three-dimensional shopping scene. Allowing includes receiving a selection of a particular selectable object.

Abstract: Some embodiments provide a method of determining whether a lottery player or the player's computer is within a particular location. The player's computer is connected to a computer network. The method transmits, through the computer network, a pass code and a telephone number to the lottery player's computer. The method requests the lottery player or the player's computer to call the number and provide the pass code within a pre-determined amount of time. The method determines whether the pass code is provided within a predetermined amount of time after the transmission of the pass code from a telephone specified to be within the particular location. The method verifies whether the lottery player or player's computer is within the particular location, based on the determination.