1. A method of searching a virtual world for objects, the method comprising providing a virtual construct capable of persistent existence within the virtual world, wherein the virtual world has at least three dimensions, and wherein the virtual construct is a web robot; instructing the virtual construct to search for objects according to a search criteria; moving the virtual construct to a place within the virtual world, wherein the place is at least defined by a finite two-dimensional area within the virtual world, and wherein the place is classified as a commercial zone based upon a minimum threshold number of objects for sale within the place; allowing the virtual construct to obtain object information relating to a plurality of objects within the place that match the search criteria; storing at least some of the object information in a searchable database; and providing a computer interface through which a user can submit an object query to the searchable database to search for objects.