Abstract: A system and method for actively marketing products and services to a user of a client computer such as over a network are disclosed. A product information database comprising product summary files that facilitate determination of presence or absence of products associated with the client computer, a marketing rule knowledge base comprising opportunity rule files governing marketing opportunities, and an opportunity detection object for determination of marketing opportunities are utilized to determine active marketing opportunities and may be downloaded to the client computer from a service provider computer system. The opportunity detection object may comprise a scan engine, an opportunity analysis engine, and a presentation engine which collectively determine and present marketing information to the client computer user.

Abstract: A system and method for actively marketing products and services to a user of a client computer such as over a network are disclosed. A product information database comprising product summary files that facilitate determination of presence or absence of products associated with the client computer, a marketing rule knowledge base comprising opportunity rule files governing marketing opportunities, and an opportunity detection object for determination of marketing opportunities are utilized to determine active marketing opportunities and may be downloaded to the client computer from a service provider computer system. The opportunity detection object may comprise a scan engine, an opportunity analysis engine, and a presentation engine which collectively determine and present marketing information to the client computer user.