A research project involving Unilever, Nestlé, i2c, Nielsen, Nectar and the IAB UK has revealed the degree to which online display ads drive sales of popular household brands both in-store and online. See the research here Ads for nine brands – Nescafé, Häagen Dazs, Persil, PG Tips, Magnum, Surf, Maille, Tropicana and Aquafresh – were tested across mainstream desktop and mobile sites including The Guardian, Yahoo!, eBay, Gumtree, AutoTrader and Mail Online. The purchasing behaviour of those who...