LinkedIn Learning - Online training through LinkedIn's professional network.
Readwise - Effortlessly rediscover and organize your Kindle highlights
Hackr.io - There are tons of online programming courses and tutorials, but it's never easy to find the best one. Try Hackr.io to find the best online courses submitted & voted by the programming community.
Newsletters to Kindle - Read your newsletters on your Kindle
Fluany - Everything you need to force your mind to learn
Klib - Kindle & iBooks Highlights Manager