According to Radicati, 651 mln people around the world now use email regularly. This figure is expected to grow steadily over the next four years, reaching 850 mln users by the end of 2008. The instant messaging market (IM) is also growing rapidly, among both consumers and business users. The study projects especially strong growth for IM Management products, which provide corporations with the ability to log, manage, and archive IM according to external government regulations, and/or internal corporate policies. This market is projected to grow at an average rate of 40% per year over the next four years, growing from $32 mln today to $121 mln in 2008.