Hello new and familiar crypto members! Here are some websites that can help you Buy/Sell/Trade Crypto Currencies with little to no trouble at all. I will list a couple of uses per program so you can get a better understanding of how to use these programs and navigate your way around the Crypto Web
Coinbase : First of lets start with Coinbase! Coinbase is a website that allows you to buy/sell the 4 "Main" Crypto's. Bitcoin, Etherium, Litecoin, Bitcoin Cash. (Possible Ripple in the future I have heard). Coinbase is a safe way to buy your currencies to branch off into smaller altcoins.
Website : https://www.coinbase.com
Introduction Video on how to use coinbase :
Binance : Binance is a website that allows you to buy and sell (Trade) Altcoins as well as regular high class coins. It is very useful and shows the ups and downs of the currency. So far Binance has had nothing but success, besides there problems with people registering. Reason behind that include 200k plus people signing up per day, if you are lucky enough to get approved. Take the advantage Binance is a strong platform. Binance also has there very own crypto called BNB. If you see promise in this platform maybe it could be a possible invest for some!
Website : https://www.binance.com/
Introduction Video and how to use it : 
Shapeshift.io : My last website I use is called Shapeshift.io. Its use is to trade altcoins and regular cryptos. Its useful because its low fees and allows for simple trading, give it a shot if you like trading Crypto!
Website : https://www.Shapeshift.io
Introduction Video and how to use it :
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