Interestingly, The Wendy's Company (NASDAQ:WEN) is using social media to drive sales of the new item. In its most recent earnings presentation Wendy's cites that the number of consumer impressions topped one billion, while promotional videos have been viewed more than 60 million times. Awareness of a product like the Pretzel Cheeseburger is key, and Wendy's has done an excellent job promoting the new sandwich.