Internet Service Provider

Organization that provides Internet services, including access to the Internet. Several types of company provide Internet access, including online information services such as America Online (AOL), electronic conferencing systems such as the WELL and Compulink Information eXchange, and local bulletin board systems (BBSs).

Many ISPs, such as Demon Internet, offer only direct access to the Internet without the burden of running services of their own just for their members. ISPs vary in the way they charge for services: some charge a flat monthly or quarterly fee; others do not charge for Internet provision, instead getting revenue from advertising and electronic commerce; others obtain revenue through complex arrangements with the companies that provide physical delivery such as telecommunications and cable companies. ISPs serve individuals as well as companies and act as gatekeepers to the Internet. They are linked to each other through Network Access Points (NAPs) which are major Internet connection points.