15. A personalized content recommendation system comprising: a client interface device configured to monitor a user's information transmitted on a computer network; a collaborative personal interest inference engine resident to a non-transient media and configured to generate automatic predictions about the interests of the user; a database server stored with a personal behavioral profile and user's preferences based on a plurality of monitored past behaviors and an output of the collaborative personal interest inference engine for a plurality of user consumption modes respectively; and a server programmed to filter items in an incoming information stream with the personal behavioral profile and content signatures and programmed to identify only those items of the incoming information stream in response to the personal behavioral profile, the user's preferences, and based in part on a plurality of phrase inhibitors and a plurality of saturation topic phrases; where the content signatures include semantically salient content elements from the monitored user's information, a network address to the monitored user's information that the semantically salient content is based upon, and a plurality of densities of topics embodied in the salient content elements.
15. A personalized content recommendation system comprising: a client interface device configured to monitor a user's information transmitted on a computer network; a collaborative personal interest inference engine resident to a non-transient media and configured to generate automatic predictions about the interests of the user; a database server stored with a personal behavioral profile and user's preferences based on a plurality of monitored past behaviors and an output of the collaborative personal interest inference engine for a plurality of user consumption modes respectively; and a server programmed to filter items in an incoming information stream with the personal behavioral profile and content signatures and programmed to identify only those items of the incoming information stream in response to the personal behavioral profile, the user's preferences, and based in part on a plurality of phrase inhibitors and a plurality of saturation topic phrases; where the content signatures include semantically salient content elements from the monitored user's information, a network address to the monitored user's information that the semantically salient content is based upon, and a plurality of densities of topics embodied in the salient content elements. 20. The system of claim 15 further comprising a plurality of HTML filters that detects and removes ads, navigation bars, tags, redirection links, or navigation links from the user's information data stream.