Cloud Mining
I tried cloud mining but found most of them to take a long time to get a return. I decided not to promote any services because I am unsure what service provider is wroth looking at. If you are going to try this type of investment make sure the pricing and what you'll receive is clearly marked and understandable. Over time your reward may go down do to the completive nature of the mining field. The difficulty goes up and your hashes don't so your reward slow reduces over time. Be careful with these investments.