I just explored Goodreads again. I have used it, minimally, for quite some time. I find the lists useful for customer recommendations. -- and, to some degree, for recommendation for personal reading. I sometimes read reviews to choose books to read or to elucidate my own opinions about specific books. I actually prefer Amazon for browsing and review reading because I can easily sort there by favorable and unfavorable reviews and I tend to read the negative reviews before the positive ones. I find Goodreads extremely hard to negotiate and, for this reason, do not use it as much as  Amazon, it seems extremely awkward and unwieldy to me. I also usually choose books for reasons other than what my colleagues or friends are reading, occasionally I will take suggestions, but I have extremely specific interests in both fiction and non-fiction and usually can find what I need directly without going to a huge recommendation site. I also don't particularly need to divide my books or reading desires into some kind of detailed virtual shelving arrangement -- I just don't like fooling around on the site enough to do this. I do not write written reviews for each book either, although I do mark with stars but most of my books are either 4 or 5 star books because I don't bother including books which I consider terrible. I prefer to write longer, more thoughtful reviews and reviews which deal with my own impressions of books based on life experience -- In general, I don't like this site, it is massive, hard to negotiate. I did recommend a book to Bryce Rumbles as per the assignment -- one that he had not listed as read, but I could have just told him about the book a lot more easily than going on this site and writing out the rec.