GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
Hullabalu - Interactive stories for kids
BookAuthority - BookAuthority collects the most recommended books on business, technology and science - as featured on CNN, Inc and Forbes
Tappity - Tappity teaches your child about science from experts.
Goodreads - See what your friends are reading.
Night Zookeeper - Help children develop storytelling skills