Blockstack is improving cryptocurrency: https://blockstack.org/
A plain-language explanation of the Lightning Network, a protocol for scaling and speeding up blockchains. While it was designed to solve some of the technical limitations of the Bitcoin blockchain, it can be implemented on top of any blockchain.
Andreas provides the best explanation of Bitcoin and Digital Currency
This is my favorite Bitcoin Explanation.
Ethereum gets a bump from Putin
You may not like her politics but a young media personality is getting the word out.