Yammer, Inc., the leader in Enterprise Microblogging, today announced that its network count passed 50,000. A network is a company or organization. Yammer launched its enterprise microblogging and social networking solution just over a year ago and has experienced strong customer adoption and viral increases in usage.

“We set out to transform the way employees communicate and collaborate,” said David Sacks, founder and CEO at Yammer. “Our rapid growth is proof that businesses see value in bringing social networking and microblogging capabilities into their companies. We believe email and IM fall short of providing the central communications hub necessary to optimize workforce productivity. Yammer fills this void. We will continue to work diligently to enhance our solution and to grow the customer and user bases.”

Yammer provides employees with a frictionless way to share information with co-workers. Companies and organizations use Yammer for a multitude of reasons, including improving workforce productivity, connecting a geographically dispersed team, and in