1.   And there are online equivalents to pen pal clubs.

2.   A rogue computer program that is the online equivalent of a quick-change artist is infecting computers around the world via e-mail and clogging computer networks.

3.   But a professor can give a student access for what is the online equivalent of auditing a class.

4.   CompuServe is setting up the online equivalent of a red-light district.

5.   Experts say worries about the technology turning Web users into the online equivalent of couch potatoes are as unfounded as fears of drowning in unsolicited pushed information.

6.   If sending an e-mail is the online equivalent of a letter, instant messaging is an Internet phone call.

7.   It is the online equivalent of shouting and a poor way to communicate.

8.   The designer who figures out how to reach these people with the online equivalent of the Wave will be a hero.

9.   The only way that happens in airlines is through old-fashioned bucket shops or their online Internet equivalents.

10.   The online equivalent of the venerable paper program distributed in many New York theaters.