What are some alternatives?
When comparing World Happiness Map and BookAuthority, you can also consider the following products
Deepin Software Center - Give the user a simple, useful and convenient software center.
Goodreads - See what your friends are reading.
appenguin - Turn the most complex web application or website to into an Android app in minutes, for free!
Bookicious - Find the best new book to read with books collections for makers, founders and entrepreneurs.
TeamWox - TeamWox is a groupware system designed to optimize the business management.
LibraryThing - A home for your books.