Source : Free On-Line Dictionary of Computing

Internet Service Provider
     
         (ISP) A company which provides other
        companies or individuals with access to, or presence on, the
        {Internet}.  Most ISPs are also {Internet Access Providers};
        extra services include help with design, creation and
        administration of {World-Wide Web} sites, training, and
        administration of {intranets}.
     
        (1996-06-24)