Yammer is an enterprise social network established to foster team collaboration, empower employees, and drive business transformation. It enables employees to collaborate in real time across departments, geographies, and business applications. It also helps them create groups to collaborate on projects and share and edit documents. The service of yammer.com can be accessed through the web, desktop, and mobile devices including iPhone, iPad, Windows Phone, Android, and Blackberry, enabling a “virtual office” that employees can plug into while on-the-go. Additionally, Yammer can be easily integrated with other systems such as Microsoft SharePoint, creating a social layer across all enterprise applications. Yammer has secured more than 7 million users, including employees from 85 percent of the Fortune 500 companies. Founded in 2008, Yammer is now a part of Microsoft.