ReutersAd group WPP cuts sales forecast on weak client demandReutersLONDON (Reuters) - WPP (WPP.L), the world's largest advertising group, cut its full-year sales target on Wednesday after consumer goods giants slashed their spending, forcing it to miss half-year targets and sending its shares tumbling. Led by the high ...FTSE 100 wobbles as WPP shares tumbleMarketWatchAdvertising giant WPP dives on FTSE 100; Pound falls to eight-year low against the euroTelegraph.co.ukFTSE 100 Flat as WPP SinksNew York TimesBusiness Insider -Bloomberg -BBC News -Nasdaqall 59 news articles »