What are some alternatives?
When comparing EthHub and Ether.co, you can also consider the following products
Digital Socrates - Questions to train your mind.
WTF is Ethereum? - Meaningful answers explaining Ethereum for all backgrounds
Explain Me Please - Complex topics explained for your level and background
Ethereum Syllabus - A complete Ethereum learning track, packed with resources
Etherglade - Accept Ethereum on your site in minutes!
The Crypto Dictionary - All the crypto lingo you need in one place