Expanded Coverage of Personal Technology

Every Thursday in Business, The Times now offers a weekly page or pages devoted to news, trends and advice on personal technology--from cyberspace to consumer electronics to personal computing to telecommunications. The “Cutting Edge: Focus on Personal Technology” builds on our daily technology coverage and the focus on tech in Monday’s Cutting Edge pages.

Among today’s stories:

* MP3.com is losing money and had less than $1 million in revenue last year. That didn’t stop its stock from soaring in its first day of trading. C1

* Need an iMac to go? Apple Computer introduced its much-anticipated iBook portable computer. C1

* Entering territory familiar to AOL customers, Microsoft today unveils MSN Messenger, instant messaging software that is a cross between e-mail and Internet chat. C1

* Your Internet Guide lists recommended Web sites and upcoming Internet happenings. C8

* Gamers’ Corner reviews “Descent 3.” C8

* Telecom Talk says a new calling plan by Sprint comes with a catch. C8

* Other technology news appears on C9