Visitors to a Virtual World Represent Themselves Through Avatars

Q63: Twitter text-based posts must be 140 characters

Q64: is a social networking Web site for

Q65: U.S. Representative was forced to resign in

Q66: No organizations have found a practical way

Q67: By some estimates, people spend only 5

Q69: encourages individuals to pass along a marketing

Q70: Impersonating a person and sending inappropriate messages

Q71: created its own social networking Web site,

Q72: is a social shopping Web site that

Q73: Cyberbullying can be easily identified and abolished.