CoinMarketCap is a website that reports on how different bitcoin and altcoins are doing. It uses a highly sophisticated information-gathering tool to give you real-time updates on the prices of different bitcoin coins and altcoins. It offers real-time bitcoin prices and dollar prices on almost one hundred cryptocurrencies, and it draws its information from numerous different bitcoin/altcoin exchanges. It offers a wealth of information, including performance information, on a wide variety of cryptocurrencies, which includes lesser-known Etherium tokens. What is more, it is also able to stack the coins against each other so that you may see which is the highest priced, which has had the biggest price fall and price rise. All of its reporting services are free, and you may use the website without having to sign up.