https://alternative.me/crypto/fear-and-greed-index/
https://coinlib.io/coin/USDT/Tether
http://www.coincalendar.info/
https://bitinfocharts.com/bitcoin/address/336xGpGweq1wtY4kRTuA4w6d7yDkBU9czU
http://bitcoin-analytics.com/
https://twitter.com/AngeloBTC
https://twitter.com/Crypto_Bitlord
https://twitter.com/Cryptonoobie
https://twitter.com/mBTCPizpie
https://www.blockchain.com/sl/charts/hash-rate
https://www.bitmex.com/app/fundingHistory