Salesforce.com has announced the general availability of Salesforce Chatter , the company's cloud-based enterprise "social collaboration" app and platform. Chatter was introduced in November , launched in private beta back in February to 100 companies, and eventually expanded to over 5,000 customers. "Salesforce Chatter is the most exciting thing I've worked on in my career," says Marc Benioff, chairman and CEO, salesforce.com.