by Ginny Marvin, Search Engine Land

“It’s probably not too surprising to hear that retailers have doubled their year-over-year spend on Google product listing ads this holiday season thus far. After all, the paid format of Google Shopping had just rolled out in the fall of 2012. What is stunning, however, is the four-fold increase in revenue that retailers have realized from PLAs versus 2012, according to a holiday retail report from Kenshoo out this week.”

Read the full article on SearchEngineLand.com