With crypto-currencies, and in particular, I met recently. No, of course I've heard about them for a long time, but I always believed that this was not for me for several reasons. In a nutshell what is cloud mining. In fact, this is the same crypto currency mining, only the whole process is not at your house, devouring electricity, generating noise and killing the video card, but on a remote HashFlare https://bonuscloudmining.com/promo-codes/hashflare-code/ server.