About BlockTrades
This website enables users to rapidly and safely purchase cryptocurrencies without the hassles typically associated with purchasing through a centralized cryptocurrency exchange. Unlike a traditional exchange, you don't need to maintain a balance on our site. Instead, you simply send in the desired amount of cryptocurrency you wish to spend, and we transfer to your wallet an equivalent amount of the cryptocurrency you are buying. This protects you from possible losses that can occur when you hold your cryptocurrency on a exchange that is vulnerable to attacks by hackers.
Purchases can also be made very rapidly (speed is dependent on the underlying confirmation speeds of the currencies being converted between) and large purchases do not tend to move market prices the way they do when placing an order on a centralized exchange.