1. A method of tagging a virtual object contained in a virtual world, the method comprising: tagging the virtual object with identifying information to generate a virtual object tag; and externalizing, by a processor, the virtual object tag outside of its virtual world so that the virtual object tag is locatable by both of the following: a query generated by an avatar within a virtual world different than the virtual world containing the virtual object, and a query generated via an external electronic environment by users external to the virtual world.