Long gone are the days when you needed to visit an actual Barnes & Noble store or order off the company's website to grab a Nook — they've been available in chains like Best Buy and Staples for some time. Nook shopping has gotten a little easier still, though, on today's news that both the Nook Color and Nook Simple Touch e-readers are available in Target locations nationwide for $139 and $249, respectively. There's no news of any price reductions on either model yet, but with the new Kindle models going as low as $79 and the Kindle Fire coming in at $199, we wouldn't be surprised to see that happen soon.