Barnes & Noble announced before the opening of the stock market Wednesday that it intends to split off its Nook Media division from the retail side, creating two separate, publicly traded companies. Shares rose over 10 percent in early morning trading on the news, up to roughly $22.5 a share. The seeds for such a spin-off were laid in the initial creation of Nook Media LLC (which includes details on how BN stores would display and sell Nook devices follow a possible separation). BN hopes to take the steps necessary to complete the separation by the end of March 2015, […]