15. A computer-implemented people matching system, comprising one or more processor-based devices configured to execute: a computer-implemented tagging function that enables a user of a computer implemented system to tag a plurality of computer-implemented objects for future reference; a people matching function that generates a match comprising a first person and a second person, wherein the match is generated based, at least in part, on an inference from a plurality of usage behaviors, wherein one of the plurality of usage behaviors is not a tagging behavior and a second of the plurality of usage behaviors is the user using the computer-implemented tagging function to tag a first computer-implemented object of the plurality of computer-implemented objects for future reference; and a computer implemented explanatory function that delivers a reason for the match to the first person, wherein the reason comprises the inference, wherein the inference is of a common interest.
15. A computer-implemented people matching system, comprising one or more processor-based devices configured to execute: a computer-implemented tagging function that enables a user of a computer implemented system to tag a plurality of computer-implemented objects for future reference; a people matching function that generates a match comprising a first person and a second person, wherein the match is generated based, at least in part, on an inference from a plurality of usage behaviors, wherein one of the plurality of usage behaviors is not a tagging behavior and a second of the plurality of usage behaviors is the user using the computer-implemented tagging function to tag a first computer-implemented object of the plurality of computer-implemented objects for future reference; and a computer implemented explanatory function that delivers a reason for the match to the first person, wherein the reason comprises the inference, wherein the inference is of a common interest. 17. The system of claim 15 , further comprising: the plurality of usage behaviors, wherein one of the plurality of usage behaviors is a subscription by the first person to a computer-implemented object that delivers information in accordance with the subscription, wherein the delivered information comprises content authored by the second person.