Over the past couple of months WPP Group has made three bids to take over market research company TNS. In May, TNS rejected WPP’s, an ad agency conglomerate, $1.9 billion offer shortly after announcing it was in discussion to merge with GfK (via: Adweek). On July 9 WPP placed a $2.2 billion hostile takeover bid for the research firm. Hours later, TNS ended its merger talks with GfK. GfK is not backing down though and is raising funds to make counteroffer (via: Adweek). And so the battle begins. It should be interesting!