Update: From 12/7/2016 Coinbase does not support buying or selling Bitcoin anymore – they recommend Coinbase instead. Goodbye Circle, we wont miss you anyway 🙂 5+ proven Bitcoin exchanges to buy bitcoins with your credit card or debit card. Our guides make it easy! Circle’s purchase of Poloniex moves it closer to building a Wall Street-style bank around the tech behind Bitcoin. Tapping into unthought of ways to move, share, invest and trade money. Circle is a great place to buy bitcoin, in fact id say its one of the better exchanges. theyve been around a while and can be trusted 100. as for where to keep them, you can keep them on Some information about Bitcoin for Circle customers who still hold it. Note: We no longer offer the ability to buy and sell Bitcoin. Buy bitcoins with debit card, credit card and paypal instantly without ID verification, Purchase bitcoin with Visa, Mastercard, Paypal.