DoubleClick’s former CEO has resurfaced…in the red-hot “group-buying” space.

It’s been just over a year since David Rosenblatt punched his last time card out at Google (which bought DoubleClick for $3.1 billion in 2008).

GroupCommNow, a sparsely populated site called Group Commerce lists Rosenblatt as the Chairman of the company. Andrew Glenn, another DoubleClick-Google alumni, is listed as the CTO, while Jonty Kelt, an entrepreneur that worked for a company acquired by DoubleClick, is the Group Commerce Chief Executive.

So what is Group Commerce?

Here’s how the web site describes it:

Our white-label technology platform enables large online publishers and affinity marketing groups to energize the buying power of their communities and generate new revenue streams.

The site says it provides “modules” for Web-based group-buying platforms, white label hosting services, vendor offer management and financial clearing, among other things.