The average “interaction worker” [is this like an information worker?] spends an estimated 28 percent of the workweek managing e-mail and nearly 20 percent looking for internal information or tracking down colleagues who can help with specific tasks. But when companies use social media internally, messages become content; a searchable record of knowledge can reduce, by as much as 35 percent, the time employees spend searching for company information. Via McKinsey Global Institute.