Computer services, namely, providing non-downloadable software interfaces available over a network in order to create a personalized on-line information service; extraction and retrieval of information and data mining by means of global computer networks; creating indexes of information, indexes of web sites and indexes of other information sources in connection with global computer networks; providing search engines for searching user-defined indexes and databases of information, including text, electronic documents, databases, graphics and audio visual information, by means of global computer information networks