Why would anyone want to use Yammer in business? Great question and here is the answer. If you have Office 365 and have Yammer installed, users can get into direct contact with others users in the organization by using Yammer. This eliminates constantly emailing the individual and gives you access to user's on the fly. Its similar to your regular online posting boards, but this is just for company employee's who are on the Office 365 domain. Groups can also be made in Yammer, like Human Resources, Sales, Quality Control, Training etc. It's a great place to share internal information.
Another group that can be made is a Yammer 101 group that has technical information for user's who need the information.
Link
Another group that can be made is a Yammer 101 group that has technical information for user's who need the information.
Link
