In September, Salesforce.com announced Service Cloud 2, the next evolution of its web based CRM product. With Service Cloud 2, Salesforce.com focuses on integrating social media with companies existing customized CRM systems.

Today at the Dreamforce Conference, Salesforce.com announced Salesforce Chatter, which the company describes as “enterprise collaborations meets real-time social computing.” Think of it as adding a private social network into an enterprises existing cloud computing platform.
Chatter is part of Salesforce.com’s new Collaboration Cloud. The company is billing the product as “Facebook for the enterprise.” The key advantage of Chatter is that it can build on the existing Force.com library of custom applications, meaning that all of those apps can now have a social component to make collaboration easier and more efficient.
Youtube video of Chatter
Article originally from Mashable
Here’s what salesforce.com have to say about Chatter:
Social computing has changed the game on the consumer Web by allowing people to gain insight — in real time — into what’s going on in their world. But despite the obvious efficiency benefits, this kind of collaboration hasn’t made it to the enterprise level. Traditionally, content, applications and people have been disconnected and part of separate conversations. Determining what employees were working on, or determining the status of any given opportunity meant scrolling through endless e-mail chains (we can practically hear the frustrated sighs) or scheduling back-to-back conference calls for updates. The result? Time, energy and resources wasted.
Salesforce Chatter changes that. Content, applications and people can now — securely and privately — join the real-time conversation. Employees will be able to efficiently collaborate and share up-to-the-minute information via profiles, status updates, feeds, groups and more. And content and applications will be able to join the conversation by talking to users through their feed when ever there is a change in data or status. And, just as the Salesforce Chatter application will enable businesses to create an effective conversation, the Chatter social platform will empower developers to easily build social enterprise applications — and all 135,000 native Force.com apps will instantly become social. This means that whatever application your business needs can be developed and shared with ease.
Salesforce.com is in a unique position to deliver this kind of social, enterprise-class application — we’ve got proven security, a trusted sharing model and house critical business information in our cloud applications. What we’re really happy about, though, is being able to leverage this unique position to make companies smarter, more informed and better able to make those critical business decisions that best serve their customers, partners and employees.
More information can be found at http://www.salesforce.com/chatter