Yammer is a social networking service for business that allows private communications within organisations.
The platform is designed to let users send messages and files to others within an organisation.
Users of Yammer can create projects and organise them more effectively by using a collaboration tool because it helps to bring together people that may be working apart from each other.
Collaboration tools like this can be used to bring in all parties that are participating in a project so that everyone is up to speed at all times.
Does Yammer still exist?
Yammer, which was launched as an independent product in 2008, had previously been used as an internal communication system for the website Geni.com.
Yammer was acquired by Microsoft for $1.2bn in 2012. Since its acquisition it was moved into the Office 365 development team, a move which led to David Sacks, one of the co-founders of Yammer, to leave Microsoft and the company he helped found.
Although Yammer still exists, it is now being more tightly integrated into Office 365 and Microsoft announced the end of the enterprise service tier from January 1st 2017.