<p>TechTarget's SearchContentManagement sites asks this very important question. And then doesn't answer it. Or rather, the article says ROI is difficult to calculate, and moves on quickly to the metrics that real-world companies do use instead.</p><p>Most of them are volume measures of engagement.</p><p>Nationwide's IT leader of collaboration says the company uses Sharepoint and Yammer, integrated into the organization's business processes via its document management system. Nationwide tracks numbers such as: How many of the 35,000 employees have joined the network? How many have posted something (as opposed to simply lurking) each week or month? What's the average time it takes for a question posted on the network to get an answer?</p><p>Telus, the Canadian telecom company, used its social tools to solicit ideas internally to define its "company promises" for customer service. The effort yielded 1,200 ideas. In a recent employee survey, 74 percent said that the social system has enhanced their jobs, up from 62 percent in a previous survey.</p><p><a href="http://www.fiercecontentmanagement.com/story/roi-enterprise-social-remains-elusive/2013-08-27">Keep reading...</a></p>