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Also part of the Information Highway are the various commercial online services, such as America Online, CompuServe and the Prodigy Service, that allow people to access information these services maintain and to communicate with other subscribers. These commercial online services have been available for several years and connect thousands of subscribers. In more recent years, they have connected to the Internet to allow users to send e-mail to online users all over the world, regardless of the online service they use. In addition, many of these services now allow subscribers to access other capabilities of the Internet, such as researching other computer sites. These added capabilities are referred to as having a gateway to the Internet. Many commercial online services are also available to schools with special features added for teachers and students and accompanying lesson plans and teaching materials.

A growing number of public telecommunications networks are also developing, particularly for schools. Many state departments of education are establishing their own telecommunications networks to link their schools. Some of these networks are restricted to particular groups, such as teachers in one state; however, increasingly, these networks are interconnecting to allow users of other networks to communicate with their users.


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