Targeted, competitive offers while browsing

Systems, methods and computer readable media are disclosed for providing targeted offers to a user who has a pre-existing account with the offeror based on information of the account and the user's web browsing information. In addition to the general system, systems, methods and computer readable media for such targeted offers, the targeted offer provider may comprise a combination of a web browser toolbar and a computing system linked across a communications network, the networking equipment of an internet service provider, and a proxy computing device.