Technology

Linguist Geoff Nunberg considers the sending of Valentine's messages via telephone, the postal system, and e-mail. What does it say about the evolution of personal communication?

Journalist Julian Dibbell talks about his book Play Money: Or, How I Quit My Day Job and Made Millions Trading Virtual Loot. He explores the world of online role-playing games, where hundreds of thousands of players log on to operate fantasy characters in virtual environments. One of the most popular games, World of Warcraft, has six million subscribers.

Recent controversies such as Google's business in China and the U.S. government's role in policing eBay transactions have put a spotlight on the intersection between governments and the Internet. Legal scholars Jack Goldsmith and Tim Wu address the issue in their new book, Who Controls the Internet? Illusions of a Borderless World.

Critic at large John Powers considers Katamari Damacy, a PlayStation game from Japan.

Six Feet Under, rest in peace. The HBO series, which aired its final episode Sunday, followed the Fisher family and its funeral home business for five seasons. It received two Golden Globe awards and six Emmys. Alan Ball, creator and executive producer, reflects on his show about death.

Steven Johnson, author of Everything Bad Is Good for You, aruges that rather than turning our brains to mush, entertainment options like video games are so complex that our brains rise to the challenge.

Patrick Radden Keefe is the author of Chatter: Dispatches from the Secret World of Global Eavesdropping. For his book, Keefe researched the possibility that the United States has a planet-spanning surveillance network, known as Echelon. Keefe is a third-year student at Yale Law School and was a Marshall scholar and a 2003 fellow at the Dorothy and Lewis B. Cullman Center for Scholars and Writers at the New York Public Library.

Robert O'Harrow, Jr. is a reporter for The Washington Post and an associate of the Center for Investigative Reporting. His new book is about how the government is creating a national intelligence infrastructure with the help of private companies as part of homeland security. Huge data-mining operations are contracted by the government to gather information on our daily lives. Information technology has enabled retailers, marketers, and financial institutions to gather and store data about us.

Rodney Brooks, the director of the Artificial Intelligence Laboratory at MIT (Massachusetts Institute of Technology). His new book is called Flesh and Machines: How Robots Will Change Us. Brooks offers a vision of the future of humans and robots. He is also Fujitsu Professor of Computer Science and Engineering at MIT. Brooks is the chairman and chief technological officer of iRobot Corporation. He was one of the subjects of Errol Morris' 1997 documentary, Fast, Cheap and Out of Control.

He is the creator of Linux, a computer operating system intended to improve upon UNIX. When Torvalds wrote the original code in 1991, he sent it out on the internet to allow anyone to make changes and improvements. So Linux was developed by a committee of thousands. In the past few years, investors backed Linux, thinking it an alternative operating system to Microsofts. However, with the recent crash in tech stocks, Linux suffered. Torvalds has just written a new memoir, called Just for Fun: The Story of an Accidental Revolutionary.