Growing Ad Networks Shaking Up Online Ad Spend

America Online’s Platform-A tops the U.S. rankings for ad networks. That puts Platform-A ahead of Web heavyweight’s Yahoo’s Ad Network in second-place and Google’s Ad Network, in third, according to a comScore report out today. The research firm also said online ad networks posted double-digit growth while grabbing market share from the big sites that sell ad space. Basically, the ad networks match advertisers with Web publishers, connecting sites that sell ad space with advertisers that want to reach potential customers, often based on shared interests, for instance, sports, outdoor hobbies or travel. Full Story : InternetNews.com…..