Patent ID: 8315921

Claim:
A method for computer network-based sale of vehicles, the method comprising: creating an access group data structure, wherein the access group data structure includes structure that defines association of web sites, users and vehicles associated with an access group; in response to receiving instruction to link the access group to vehicles, updating the access group data structure to reflect linking of the access group to the vehicles; in response to receiving instruction to link the access group to web sites, updating the access group data structure to reflect linking of the access group to the web sites; in response to receiving instruction to link the access group to users, updating the access group data structure to reflect linking of the access group to the users; based on the access group, controlling whether vehicles are visible on respective web sites; and based on whether a user is associated with the access group, allowing access by the user to respective items in the access group, wherein the respective items comprise a plurality of the vehicles visible on one or more of the web sites.