A Europe study conducted by eBay Advertising has found that online shoppers are more receptive to display ads on social networks than web portals, reports Revolution. The study’s main finding is that people are most responsive to ads when and where they’re already shopping, with 60 percent receptive to advertising when they are on an e-commerce site. With display ads on other sites, it found only 5 percent responded to ads on web portals while 7 percent did so on social network sites. Read more at Revolution.