Computer services, namely, providing temporary use of non-downloadable computer interface software available over a network in order to create personalized on-line information services; extraction and retrieval of information and data mining by means of global computer networks; creating customized user-defined indexes of information, indexes of web sites and indexes of other information sources which include online web links to other web sites in connection with global computer networks; customized searching services in the nature of providing specific information as requested by customers from indexes of information, indexes of web sites and indexes of other information sources via the Internet; customized searching services, namely, providing specific information as requested by customers from searchable indexes and databases of information, including text, electronic documents, databases, graphics and audio visual information, by means of a global computer information network