15. A computer-readable storage device storing computer instructions, which when executed by a processor of a computer, causes the computer to: execute a Turing test to test the one or more avatars, wherein the Turing test evaluates positional movement of each of the one or more avatars; determine the behavior characteristics of the one of the one or more avatars, wherein the behavior characteristics comprise whether each of the one or more avatars is able to demonstrate human intelligence; retrieve from an avatar its multimedia characteristics, the VU system comprising one or more avatars that each have behavior characteristics, wherein at least one of the avatars is an automated, non-human operated spam avatar created by an advertiser operating within the VU, the VU system having memory that stores behavior characteristics of known spam avatars; compare the retrieved behavior characteristics with behavior characteristics of known spam avatars; identify similarities between the retrieved behavior characteristics with behavior characteristics of known spam avatars; and identify the avatar as an automated, non-human operated spam avatar based upon the similarities between the behavior characteristics of the avatar with the behavior characteristics of the known spam avatars.
18. The computer-readable storage device as defined in claim 15 wherein the Turing test further evaluates an ability of the one or more avatars to recall and demonstrate a series of commands.