Robinhood - Free stock trading service.
GoodBooks.io - Largest curated collection of 8,500+ book recommendations.
Scout Finance - Free finance app that's like having a Bloomberg in your pocket. Download:
BookAuthority - BookAuthority collects the most recommended books on business, technology and science - as featured on CNN, Inc and Forbes
Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
Goodreads - See what your friends are reading.