GroupM, the wholly-owned operating company of WPP, has acquired plista, a digital media specialist in Germany.plista, an online advertising specialist that employs about 100 people, brings advertisers and publishers together via its data-driven proprietary content and advertising platform, which GroupM wants to develop to a global level. The business currently operates in Germany, Austria and Switzerland and its clients include Volkswagen, Sony, Coca-Cola and RWE. In 2012, full-year revenues totalled €3.9m, with gross assets at the year-end of €2.9m. "This acquisition marks a further step towards WPP's declared goal of developing its networks in fast-growth markets and sectors and continues WPP's strategy of strengthening the group's capabilities in digital media," the FTSE 100-listed company said.NR