Providing multiple-user access to a global computer information network for the transfer and dissemination of a wide range of information; hosting the web sites of others on a computer server for a global computer network; designing and implementing web sites for others; providing multiple-user access to a global computer information network for the transfer and dissemination of a wide range of information through dedicated telephone lines; design of computer security software for others, namely computer security firewall software for protecting personal computers and computer networks; custom design of computer systems