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Redirected from: Viva Engage

Definition: Yammer


A private social network for businesses. Launched in late 2008, Yammer lets companies create their own social network site for employees as well as customers. Private groups within the company can also be organized. Access is available via a desktop application, the Web, email, instant and text messaging, as well as smartphones. In 2012, Yammer was acquired by Microsoft and changed to Viva Engage in 2023. See Twitter.