EMining
Sign-up here : http://emining.club/?rinvite=tejas36au
You get 100 GHS free mining power valid for 30 days.
Start to mine Litecoin or Dogecoin (Dogecoin is preferrable).
After 2-3 days exchange mined Litecoin or Dogcoin to GHS power.
First concentrate on increasing GHS power by exchanging coins to GHS power.
If you build good GHS power then you can mine coins more efficiently with increased speed.
Don't hurry up for withdrawal and concentrate on increasing GHS power for first 30 days.
This way you can increase GHS power from bonus and it will remain with you for lifetime.