Internal communications are an integral part of the efficiency of a large or small company. Internal communications can include e-mail, an intranet, office newsletters and much more. The wave of social media has brought with it a host of tools specifically designed for internal communications.
One of the most popular social media tools for internal communications purposes is Yammer. Yammer is essentially Twitter for the office. The benefit of Yammer is that it's a private communications channel for employees to share quick messages about what they're working on, get questions answered or blast out news. According to the site, Xerox and Cisco are among the over 200-plus companies using the service.

Robert Scoble recently wrote in his e-book "The Conversational Corporation" that Accenture has an internal community that looks a lot like Facebook, except that its private. Rather than talk about personal stories and opinions, the employees use it to discuss business related subjects and share eachothers experiences and knowledge.
If the top companies are incorporating social media tools into their internal communications, don't you think other companies should evaluate if it is a good fit for them as well?
