Engineering; Technical consultation and research in the field of engineering and automation; Training in the use and operation of computers; Design for others in the field of computers and engineering; Duplicating computer programs; Custom manufacture of computers for others; Digital compression of business files and computer data; Conducting engineering surveys; Computer services, namely creating indexes of information, sites and other resources available on computer networks; Telecommunications reseller services, namely, telecommunications air time brokerage services; Consulting services in the field of design, selection, implementation and use of computer hardware and software systems for others; Providing information at the specific request of end-users by means of telephone or global computer networks [customized searching]; Upgrading of computer hardware; Monitoring the computer systems of others for technical purposes and providing back-up computer programs and facilities