This term is generally used to describe the application of internet technologies on internal corporate networks.
Intranets are the wave of the future for sending and receiving corporate information.
The focus of many corporations is to have data accessible to different areas of production, and to sales and marketing divisions at any time. Web browsers allow the design of easy to use interfaces that both the corporation and clients can access. Extranet Using computers and the Internet to link businesses together all over the world. Extranets are intranets extended over the border of local networks. The user side software runs in any operating system, even on low cost machines equipped with an appropriate browser.