I found an amazing bitcoin mining site that allows you to mine USD, Bitcoin, Litecoin, Dogecoin and WebMoney. You can upgrade your mining rate by spending your coins and mine faster and faster.
TIP*** Choose the most profitable coin (most $ per hour) to start upgrading your Cloud Mining Speed! Exchange Your coins for Mining speed every 2-3 hours for optimal speed. You start off with 1500 dogecoin, so immediately exchange it to get more speed!
You can sign up for free here: (referral link to help you get 30% bonus coins) https://cldmine.com/account/registration/12531
