The author, Dan Blank, says:
"Why does it not really matter if Amazon buys Goodreads, because in the end, authors have no more, and no fewer ways, of creating great writing, connecting with readers online and in person, and experiencing books not as a commodity, but a primary way of experiencing the world, our place within it, and even outside of it."
In the long run, it will be interesting to see what happens. I know I don't want Goodreads becoming an extension of their e-commerce model because, personally, I buy books from Barnes and Nobel for my Nook and don't want to see sellers like them squeezed out in the end. Only time will tell.
You can read the rest of the HuffPo article here: http://www.huffingtonpost.com/dan-blank/amazon-goodreads_b_2978457.html?ncid=txtlnkushpmg00000036