As use of the Internet has grown by leaps and bounds, it is clear that electronic commerce will proliferate rapidly in the years ahead. The number of Internet domains in the United States is more than 1.3 million. Most major companies now have Web sites, if only to market themselves, and many others are exploiting intranets to improve internal operations. As many as 163 million personal computers worldwide will have access to the Internet by the year 2000. As television and telephony migrate onto the Internet, wireless communication explodes, and countless other new applications attract users, one of the biggest challenges is understanding the economic and social logic driving change