Papers measuring the average number of email messages sent and received per day also show a trend toward increasing communication: from fifty emails per day in 2005,5 to sixty-nine in 2006,6 to ninety-two by 2011.7 A recent report by a technology research firm called the Radicati Group projected that in 2019, the year when I started writing this chapter, the average business user would send and receive 126 messages per day.8
