As a result of the increase in the number of buyers on the Web and the average transaction size, the amount of commerce conducted over the Web is expected to grow dramatically from $2.6 billion in 1996 to more than $220 billion in 2001, according to a report published by International Data Corp. ( IDC). The results are part of a continually updated IDC model of the Web based on 40,000 primary research interviews per year in 17 countries. Additional key findings include: