Enterprise cloud computing company  Salesforce.com  announced the acquisition of Dimdim, a developer of enterprise applications on a cloud-based communications platform, for $31 million. Salesforce will be employing the technologies acquired to its Chatter service expansion.

Since its foundation in 2007, Dimdim has created real-time communications technologies such as presence, messaging and screen sharing. The acquisition entails not only owning Dimdim’s technologies, but employing their developers as well.

“From our start, Dimdim has focused on enabling real-time communication in the cloud, with no software,” said DD Ganguly, CEO, Dimdim. “Salesforce.com gives us the opportunity to apply our expertise and align our vision of real-time, social enterprise software in the cloud – at a scale that wouldn’t have been otherwise possible.”

The integration of Dimdim brings in real-time communications capabilities to the Chatter collaboration platform. This model is very much like Facebook, which mashes collaboration and communication in a single service.

“Facebook has fundamentally changed the way we communicate in our personal lives,” said Marc Benioff, chairman and CEO, salesforce.com. “The acquisition of Dimdim will help salesforce.com deliver to the enterprise the same integrated collaboration and communication experience that made Facebook the world’s most popular Internet site.”

Salesforce is following the footprints of Facebook, which has signed up 500,000 users worldwide with its real-time collaboration, as well as feeds and status updates. Chatter hopes to achieve a service as comprehensive and successful.

The move is part of Salesforce’s massive shift to Cloud 2. While they’ve already done the transition to the first phase, leveraging technologies that were low cost and easy to use; cloud two reflects today’s age, one that is social, mobile and real-time.