Twitter enters into two-year, $240 million ad deal with Omnicom Media

Social media company Twitter has made a move to strengthen its ad division with a $240 million agreement with Omnicom Media Group. The two-year deal will see Omnicom’s programmatic ad buying unit, Accuen, integrated with Twitter’s MoPub ad exchange. Twitter had purchased MoPub in September for $350 million in a move to strengthen its advertising arm….