1. A content delivery system operative in a computer network for delivering resources associated with a plurality of content providers to multiple client machines, the system comprising: at least one shared repeater server constructed and adapted to replicate at least some of the resources associated with a first content provider of said plurality of content providers, and to replicate at least some of the resources associated with a second content provider of said plurality of content providers, wherein the second content provider is distinct from the first content provider; at least one table listing a plurality of alias names corresponding to content providers authorized to have resources delivered to client machines via the at least one shared repeater server, wherein the plurality of content providers comprises the first content provider and the second content provider, wherein at least a first resource associated with the first content provider is associated with a first alias name of the plurality of alias names, said first alias name being associated with said at least one shared repeater server; wherein, requests for the first resource from said client machines are directed to the at least one shared repeater server, based at least in part on said first alias name; wherein at least a second resource associated with the second content provider is associated with a second alias name of the plurality of alias names, said second alias name being associated with said at least one shared repeater server; wherein requests for the second resource made from said client machines are directed to the at least one shared repeater server, based at least in part on said second alias name; and wherein the at least one shared repeater server is further constructed and adapted to analyze, using the table, an alias name received with a client request for a particular resource to determine a content provider associated with the particular resource.