As retailers try to figure out how to bridge the gap between online and offline, finding a loyalty program that can work with both sides of the equation can be equally as difficult. Denver-based Plink is one company that is making things easier for restaurant chains and today the company has announced a $3 million Series A round of funding led by Grotech Ventures.

The company presently serves brands such as Arby’s, Burger King, Dunkin’ Donuts, Quiznos, and Taco Bell. Word from Plink is that it will use the money to expand its platform for offline advertisers and to grow its sales, marketing and technology staff. The company had previously closed a seed round of $633,000 in April of this year. Most recently it started paying Facebook Credits as a reward for eating at restaurants.

Chances are you recognize the Plink name, but it’s likely not the company you’re thinking of. Plink was also the given name of a visual search company that was acquired by Google in 2010 to bolster Google Goggles. The Plink that is today’s subject hasn’t made much noise just yet, but we do know that the company’s CEO and co-founder is Peter Vogel, a long-time proponent of CPA advertising.

Image: epSos.de