Im not sure why you have to bother yourself about some account on Twitter updating latest prices
You have coinmarketcap to do that for you
Just go to coinmarketcap.com
CoinMarketCap.com is one of the more useful sites for getting an overview of the cryptocurrency market.
NOTE: CoinMarketCap.com isnt an exchange, it is just a resource that helps you find coin prices and where to trade specific crypto pairs like BTC/ETH. It is also one of if not the most popular crypto resource online