This may have been out there for a long time, but I just dug into it and it is pretty useful. If you are an author who is published on Amazon, you can create your own author page. The page lets you add a biography and picture and it lets you link your books to your author account. More interestingly it can link to your twitter and RSS feed from your blog to provide a quick highlight of what the author has been up to recently. Mine is online at https://www.amazon.com/author/cfullermvp
Summary: If you are an author whose books sell on Amazon and you haven’t already checked this out yet you definitely should at https://authorcentral.amazon.com/.