E-mail is a ubiquitous and essential business tool. Consultant Robert Eisenberg reviews the reasons why all companies should implement an e-mail management system not only for the sake of efficiency, but also for its defensive and preventative applications.
See also this ABCNews.com article, The Trouble With E-Mail, which reviews recent cases in which e-mail played an important role, as well as providing basic advise on using workplace e-mail safely.