Computer services, namely providing use of non-downloadable graphical interface software available over a global network in order to extract and retrieve information and data mining by means of a global computer network, for use in delivering contextually relevant, publisher-of-website-specific advertising, creating indexes of information, indexes of web sites and indexes of other information sources in connection with a global communications network and providing user-defined information from databases, including text, electronic documents, graphics, audio and visual information by means of a global communications network