NiceHash - Bitcoin Cloud Mining
Coinbase - Bitcoin, safe and easy.
Bitminter - Bitminter is a Bitcoin mining pool that aims to make it easy for anyone to make bitcoins.
Binance - Cryptocurrencies exchange platform
MinerGate - Start mining effectively with your computer or smartphone. Squeeze the most profit automining coins with the highest rates.
Poloniex - US-based cryptocurrency exchange with maximum security