MONTREAL - Quebecor Media Inc. said today it will try to take its interactive marketing agency, Nurun, private. Following a proposal received from a large Nurun Inc. shareholder, acting on behalf of itself and certain other shareholders of Nurun representing in the aggregate a majority of the common shares of Nurun, excluding Nurun common shares held by Quebecor Media, QMI has entered into lock-up agreements under which such holders have irrevocably and unconditionally agreed to tender their shares to an offer by Quebecor Media to acquire all issued and outstanding shares of Nurun at a price of C$4.75 per share...