I Tried Bookshop.org's New eBooks (And It's Not a Kindle Killer, Yet)
The newest ebook store is more altruistic than Amazon but isn't a perfect reading experience yet.

Most people’s first thought for buying an ebook is to go to Amazon. Bookshop.org is trying to combat that notion with its own ebook store that will give money back to your local bookstore. While its new ebook experience is okay, there are still things you should know before dumping your Kindle.