Facebook has unveiled a selection of marketing tools for advertisers to use, including an advanced Facebook page for businesses as well as mobile ads. According to analysts, the changes are aimed at projecting Facebook as a lucrative platform for marketers before the service goes public. Last week, the social media giant organized its first big event for advertisers, where it announced a number of new offerings to generate more opportunities for Facebook as well as a number of 3rd party marketing and advertising organizations.

GroupM announced today the launch of Xaxis, a global audience buying company that combines all of the demand-side data and technology resources of WPP (NASDAQ:WPPGY) and the trading leverage of the GroupM agencies into a single comprehensive resource.