Twitter may be expanding its footprint in metro Atlanta. Based in San Francisco, the company took space in hosting site Quality Technology Services in Atlanta last year. While it won't confirm the rumor, reports say Twitter will be more than doubling its space there investing $300 million in servers.QTS doesn't name its clients, but V.P. of Sales, Operations, and Marketing, Chris Oberkfell, says Atlanta is becoming more attractive to companies needing data services.'There is a significant basis for technology with Georgia Tech and the other university systems, and different businesses that are headquartered here including a number of the Fortune 500,' he tells WSB's Sandra Parrish.Oberkfell says Atlanta also has plentiful IP connectivity as well as lower power costs compared to other metro areas. Larry Williams, V.P. of Technology Industry Development for the Metro Atlanta Chamber, agrees. 'We have a huge amount of infrastructure... that allows people to be connected and develop the software they need and communicate in a worldwide platform,' he says. QTS serves more than 400 clients in two operations in metro Atlanta including a nearly 1 million-square-foot facility in downtown and a 400,000-square-foot facility in Suwanee.Oberkfell says the companies it serves include those in health care, financial services, and the media.'There's very few businesses that don't have material internet components these days,' he says.