Publicis Forms 'Open Source' Ad Network; Partners With AOL, Google, Yahoo, Microsoft

Paris-based ad holding company Publicis Groupe has formed an ad network relying on all four of the major ad serving systems run by Microsoft (NSDQ: MSFT), Google/DoubleClick, Yahoo (NSDQ: YHOO) and AOL's Platform-A (NYSE: TWX). While not that... 2 months ago