https://blockchain.info/wallet/#/login


https://bittrex.com/Home/Markets

https://coinmarketcap.com/

https://coinmarketcap.com/currencies/bitcoin/

https://coinmarketcap.com/currencies/ethereum/

https://coinmarketcap.com/currencies/ripple/

https://localbitcoins.com/ad/464638/buy-bitcoins-with-cash-croydon-uk