The internet is a world wide, publicly accessible series of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP). It is a "network of networks" that consists of millions of smaller domestic, business, and government networks, which together carry various information and services, such as electronic mail, online chat, file transfer, and the interlinked web pages and other resources of the World Wide Web (WWW). According to widespread reports about 1.319 billion people currently use the Internet and growth seems exponential. This book brings together diverse research on many aspects of the internet.