42 Computer services, namely, providing software interfaces available over a network in order to create a personalized on-line information services; extraction and retrieval of information and data mining by means of internet, creating indexes of information, indexes of web sites and indexes of other information sources in connection with internet, providing information from searchable indexes and databases of information, including text, electronic documents, databases, graphics and audio visual information via the internet; electronic navigation services, namely, providing search engine services for obtaining data via a global computer network