Yammer is an enterprise collaboration tool that lets you easily connect and share with the people in your company or organization (like an internal Twitter). The question is "What are you working on?". You must have a company email address and confirm membership to participate.
Download the Yammer Desktop Application to follow and participate in Yammer conversations on your Mac or Windows desktop. Yammer also has applications for iPhones and Blackberry.
Check it out: https://www.yammer.com/
