Katie Hafner

Berners-Lee started the World Wide Web as a set of protocols for transferring, linking and addressing documents to send over the Net. Without the global reach and open technical standards of the Internet, the Web could never have proliferated as it did.

Stacey Napp understands the ugly side of divorce - which is often the side that involves money. In fact, she understands it so well that in 2008 she started a business, Balance Point Divorce Funding, which invests in divorce and probate litigation, helping clients cover costs in exchange for a share of the winnings.

Spurred by the unlimited texting plans offered by carriers like AT&T Mobility and Verizon Wireless, American teenagers sent and received an average of 2,272 text messages per month in the fourth quarter of 2008, according to the Nielsen Company - almost 80 messages a day, more than double the average of a year earlier.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.