Abstract: The invention provides, in some aspects, improvements to a digital data system of the type having one or more servers coupled to a plurality of client devices over a network. The improvement is for automated insertion of supplemental content into digital content transmitted by the server(s) to a client device and is characterized by selection of that supplemental content based on a conditional probability function that estimates the viewability of the inserted content—i.e., whether and for how long the user of the client device will see and otherwise have an opportunity to interact with (play, scroll, click-in, mouse-over, etc.) that content.

Abstract: The invention provides, in some aspects, a digital data system for automated customization of digital content delivered over a network based, e.g., on measures of content appeal and/or user motivation. That content can include web pages, downloads, or other digital content accessed by a client digital data device (e.g., on behalf of a user) from a server digital device. Such a digital data system can comprise a server digital data device that is coupled to a plurality of client digital data devices over a network such as, for example, the Internet. A server application executing on the server digital data device responds to requests received from the client digital data devices for delivering thereto requested digital content.