DataDistillr - Query, Analyze and Join Any Data Without ETL
GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
xTiles App - A web note-taking app for creative people that combines the best from text editors and whiteboards. Think, write, and organize your thoughts based on cards and tabs. Structure and enrich all of your ideas in one place.
BookAuthority - BookAuthority collects the most recommended books on business, technology and science - as featured on CNN, Inc and Forbes
Moonio - Influencer marketing made efficient
Goodreads - See what your friends are reading.