Currently, there are no performance issues. Yammer.com is operating normally.
About Yammer Status
Yammer (www.yammer.com) is the leader in Enterprise Social Networking, providing a secure way for employees inside a company to communicate, collaborate, and share information. This page provides information about site maintenance and service interruptions. Visit our blog (http://blog.yammer.com) to see how our customers are benefiting from Yammer.