6. An Internet website client-server computer system, relating to use to determine a level of subject interest for each one of a population of users by capturing other users' (of such population of users) opinions about the degree of relevance of each of a respective set of natural language descriptive terms to each of a respective set of subjects, comprising: a) a server database system of subjects, each associated with a set of relevant natural-language terms for describing each such subject; i) wherein each of a respective subset of such terms has been assigned, by each of a subpopulation of such population of users, a degree of relevance with respect to a respective such subject; b) a client interface system arranged so that such one user may select a set of preferred such natural-language terms which, to such one user, best describe preferred “subjects of interest” to such one user; c) a server computer processor system connected with said server database system and said client interface system; and d) a server computer software system, operational with said server computer processor system, arranged to provide search processing using such server database system to: i) determine an overall, according to such population of users, degree of relevance of each such preferred natural-language term to each such associated subject of such server database system, and ii) determine a set of search-return “subjects of interest” each having at least a specified aggregate degree of relevance considering each such overall degree of relevance of each such preferred natural-language descriptive term to each associated such subject; and iii) return such set of search-return “subjects of interest” to such client interface system of such one user.
7. The computer system according to claim 6 wherein such set of search-return “subjects of interest” is ordered according to relative such aggregate degree of relevance.