Ferrumine Cloud Mining is a service where you can earn extra income!

Supported coins:
BTC, BCH, BTG, BCN, DASH, DOGE, ETH, ETC, LTC, XMR, ZEC

Payback:
Approximately 200% per year (currently)

There is a very profitable affiliate program and a small bonus! The payouts is instant, without any hold!
I'll add that this affiliate program attracts more than a bonus (bonus here is low, but still nice). I am glad that you can withdraw the money at any time and they come at once.

Link to the site:
https://ferrumine.com