storagedude writes "At the launch of Chatter Mobile this week, Salesforce.com CEO Marc Benioff said he has been using the Facebook-like business service to monitor employee communications and identify a 'secret network' of employees who are influential in driving the business. Asked if employees felt like they were being spied on by Big Brother, Benioff replied, 'There are certain things appropriate in a business environment. We're not talking about a tea party, we're talking about how to get things fixed.' With 20,000 companies already using the three-month-old service, it is no doubt being put to similar use elsewhere. While Salesforce's use of Chatter to monitor employees appears to be legal, the issue underscores just how much social networks can be mined for information — even for things they weren't intended for."