$4.6 billion
Projected e-mail marketing expenditures by year-end 2003, 417 percent increase over 1999. 59%
Portion of those receiving spam e-mails who delete the message without reading them. 6%
Portion who say they are offended by the invastion of privacy. 24, 39%
Average number of e-mail messages Internet users receive each day: portion of those messages considered to be spam. 95.5%
Percentage of surveyed users who cite "uses false address to avoid reply" as a reason for disliking commercial e-mail.
Sources: eMarketer, IMT Strategies, CAUSE, Survey.com
