JCPenney circulated almost 400 million consumer catalogs in 2005.

American Airlines’ AAdvantage loyalty program debuted with fewer than 300,000 members in 1981; it currently boasts more than 50 million members.

73 percent of direct mail readers read direct mail from retailers, a 3-percentage-point increase from 2003, according to a Vertis Communications poll.

58 million Americans have provided content to user-driven Web sites like YouTube.

On a scale of one to seven, where one is most intrusive and seven is least intrusive, consumers ranked e-mail a 1.93 and mail a 4.24, according to a University of Georgia poll.