It seams that sum employees are hving problems with their righting. Yep the remedial english market is wirth around $3.1 billion annually.

A study by the National Commission on Writing concluded that a third of employees in the nation's blue-chip companies wrote poorly and that businesses were spending as much as $3.1 billion annually on remedial training.

You can read more about this interesting artifact of the email phenonemon in New York Times but beware, there are some big works, errr words.