Fig.1. The debate on this book in Amazon comments is turning this into a self-directed, open module on the outbreak of the First World War
Amazon is going way beyond selling and reselling books to aggregate conversations. The sophisticated way that discussions are offered might be a lesson to educators - reviews aren't simply stacked, but are offered in a variety of ways: contrasting arguments, newest first, based on rating for the publication or likes from other readers. While simultaneously, playing upon serendipity multiple alternative reviews are offered in a 'side bar'. You can begin to pick out types of voice, from the academic to the belligerent, to those who have yet to read or complete the book, to those that have read it more than once. Innovations here are seeing Amazon becoming a social platform in its own right with recently launched platforms inviting discussion and group forming. i.e. Amazon gains in stickiness and frequent visits and revisits.
(First posted in OpenStudio as part of H818: The networked practitioner).