Move aimed at challenging Google’s online ad space Bloomberg Facebook Inc. next week will unveil a new advertising platform designed to improve how marketers target and measure the advertisements they buy across the Web, according to people familiar with the company’s plans. The product, called Atlas, is a re-engineered version of the Atlas Advertiser Suite business Facebook FB, +1.94% purchased from Microsoft Corp. in 2013. It promises to help marketers understand which Facebook users have seen, interacted with or acted upon ads that appear both on Facebook’s services and on third-party websites and apps. It will also provide an automated ad-buying tool known in the industry as a “demand-side platform” or “bidder,” which will offer marketers the ability to buy ads that target Facebook’s members as they move around the Web. The move is aimed at helping Facebook challenge Google Inc.’s GOOG, -1.06% dominance of the online ad space. Some advertising executives say Facebook could provide marketers with better targeting capabilities and more detailed and accurate information about ad campaigns than they previously have had access to. Google reported second-quarter ad revenue of $14.36 billion. Facebook said it generated $2.68 billion in the same period. Marketers increasingly crave data to help inform and measure their ad campaigns. In addition to the demographic information it holds about its members, Facebook also collects valuable data about the sites users visit and the types of content they click on and post across its service. http://www.marketwatch.com/