tutorial 
http://bit.ly/1iEjTI4
 
estimate your cloud mining profit - http://bit.ly/1n9i2vn
just click in the right corner.
 
Cloud mining or cloud hashing is a brand new concept, which allows users to form groups (pools), 
where their joint efforts are rewarded with greater income, in comparison with individual mining 
with own equipment.
 
Now, everybody can earn additional income with little to no risk and frequent payouts.
 
All mining is done in the cloud, without any offline hassle, such as electricity, hosting issues, 
or installation and upkeep trouble.
 
You can choose either to generate income by cloud mining, or you can trade on the GHS price variation.