As brands try to foster loyalty with Facebook pages, show innovation on blogs and address customer concerns on Twitter, social media is threading its way through the marketing and sales, research and development, customer-service departments and more. All of which gives rise to the question: Just whose job is it anyway? Answer: everyone's -- so it's important to get all those disciplines working together.

Take Ford Motor Co. for example. The automaker saw $2.7 billion in profit for 2009 -- a huge turnaround from a record loss the prior year -- and it smartly used social media to help disassociate it from the bankruptcies and bailouts of its rivals. But that required breaking with custom at Ford and pooling the resources of marketing and corporate communications.

"We've been living this for the past year," said Scott Kelly, Ford's digital-marketing manager. "Historically, we had very little interaction with public affairs, but ever since the congressional bailout for the other two automakers, we needed to combine marketing and public-affairs forces to get the right message out around Ford so we didn't get dragged down by GM and Chrysler."

Gettin in early
In late 2008, Ford brought together the teams from what was then called public affairs (now corporate communications) and marketing to plan all efforts simultaneously. That means Ford's Global Digital and Multimedia Communications Director Scott Monty is now involved in marketing's launch-planning meetings. "In the past, public affairs were brought in at the end," said Alex Hultgren, Ford's digital-media manager. Now, Mr. Kelly said, "I talk to people in public affairs daily, where it used to be monthly."

Couldn't agree more -- social media is sth. that needs to be taken throughout the company.