With its obvious cost advantages over more traditional forms of communication, Internet messaging continues to gain acceptance amongst companies in a wide range of industries. Messaging software will remain an essential element of the total Internet market, but as the market matures, vendors of messaging software will have to diversify product offerings, enhance the value of products or expand to new geographic markets to capture new revenue sources. This Frost & Sullivan report includes coverage of the competitive environment, market drivers and restraints, revenue forecasts, and much more.