1. A method of tracking or regulating access to electronic content, the method comprising: collecting notification information from a recipient of electronic content in response to an attempt to access the electronic content at a first computer, the notification information collected by notification instructions previously received from a third computer; determining dynamically by the received notification instructions at the first computer how to navigate through a network configuration to a public network; initiating transmission of the collected notification information to a second computer at an address other than that of an immediate sender of the electronic content; and selectively controlling access to the electronic content at the first computer based on a result of the transmission of the notification information.