I just found this website that allows you to get some free coins mining service.
How to get free coins?
- Sign up to this website
- set Mining to “GHS 4.0”
- Goto Products > Faucet > type in the captcha to get the free coins
- repeat step 3 daily to increase your mining power
After a week or two, you will have significant mining power to make some real paper. 🙂