Add auto links to all the major booksellers out there besides just Amazon (B&N, Lulu, Google Books, Smashwords, etc) who have a reviews feature. Otherwise, enable ability to copy-paste URL into widget to achieve same functionality.
Interesting suggestion @user5106
Much as I’d love to give hope to you, I’m afraid these sources are not the ones that are going to be added in the near future. However, if your request becomes popular. we’ll try to consider them in our upcoming enhancements
Thanks a lot for your help and welcome to Community!