Spam and the sheer volume of messages are rendering e-mail exchanges unmanageable. Dealing with your inbox, particularly at work, is increasingly a time-suck instead of a time-saver. More and more businesses are turning to limited membership exchanges, such as instant messaging (IM).
E-mail accounts are only useful for subscriptions and other sign-ups that require some sort of accountability. But exclusive communities render even that need as vistigial. Closed virtual networks increase productivity while almost eliminating unwanted noise. Plus there is the added advantage of a priori archiving, allowing a manager to direct where certain types of exchanges will take place.
Dump your e-mail account and watch your spam concerns disappear.