As many as 50 per cent of all Internet users only have e-mail access. This could be due to bad connections or the cost of full access.
Some people live in areas where strict controls prevent the viewing of certain pages.
E-mail provides a way for these people to access the vast amount of information on the Web. It also allows them to surf by having the links displayed in the reply. With technology and proper access changing so quickly, eventually this service will not be needed. For the next five years or so there will still be a large percentage of users who only have e-mail. The majority of these users live in developing and emerging countries, where a large portion of sustainable development information is targeted.