Retail revenues derived from Google Product Listing Ads (PLAs) grew by 52% year over year in the first quarter of 2016, according to e-commerce marketing technology company Sidecar. Not surprisingly, mobile was the big driver, with sales from mobile PLAs increasing 164% during the period. Google Shopping clicks and orders were each up by 171% in Q1, and return on advertising spending was up by 23%, Sidekick reports. At a sitewide level, retailer revenue from mobile devices grew by 45% year over year. Google Shopping click growth reached 98% year over year, well past holiday 2015 click growth of 65%, and mobile impressions increased 130% year over year. Read more at Retail Dive.