This volume gives a comprehensive coverage of Internet technologies. It provides both a contemporary and extensive review of developments in the field and also gives details of research. Areas covered include: developments in the network protocols on which the Internet is based; the evolving capability of the Internet to carry audio and video traffic; and the development in security and payment technologies which are opening up a wide range of commercial electronic applications. As the importance of the Internet continues to increase, this book should be of interest to businesses. Several case studies of on-line services are included. The text should prove useful not only to researchers in the communications and computing sectors working directly in the development of the technology, but also to people working in banking and finance. Business users of the Internet should also find the book to be useful in the development of such applications as Internet trading and corporate intranets.