The buying and selling of web addresses is becoming big business. Thanks to pay-per-click advertising, the business could top $4 billion by 2010. Why you ask? People no longer look at web addresses as a commodity, but rather look at it as a piece of real estate.

Implications - The vast expansion and widespread adoption of the Internet has turned online domains into valuable virtual lots. Savvy entrepreneurs are monetizing domain names just as real estate developers might monetize a rental lot. To take advantage of this opportunity, companies can purchase a series of relevant domain names and place a carefully curated blend of unique advertising and content on them.