Is E-Mail Still Effective?
http://www.iabc.com/cwb/archive/2004/0304/effective.htm

Hoy, Richard
Communication World Bulletin
2004

Abstract:

With recent press surrounding the U.S. CAN-SPAM Act and possible future charges for sending e-mail as well as virus creators competing with each other for infection rates, how can you ensure that your e-mail communications are still effective and reach their intended recipients? E-mail has qualities that make it an ideal communication vehicle. But for all of these positive characteristics, e-mail has taken a serious blow over the past six years. An anti-spam technology company estimated that 62 percent of all e-mail sent across the Internet was identified as some sort of spam by users of their technology.