I think you told about the faucet system of earning bitcoin. But this process is west of time also. I think this is not a profitable things. If you want to earning bitcoin , you should joining some bounty campain,singnature of you should trading in bitcoin crypto currency. Bitcoin trading is the best way to earn bitcoin in a short time i think.
You also get here many kind of bounty campain, if you work with those campain you will get payment from them.
But in faucet system you can earn little amount of bitcoin.You can't do anything with it,thank you.