Bitcoin mining today costs more than it is worth. There are still faucets where you can get some money for free. Faucets are services that will give you some free, but an insignificant amount of, bitcoin. It is hard to say that faucets are worth the time, but if you absolutely must get some bitcoins and you absolutely can't pay for them, faucets will get you free bitcoins.
Take this UFO Bitcoin faucet! You wil earn between 600 - 1000 satoshi every 24 houres. It has also a referral program. The only thing you have to think about is the withdrawal threshold, which for a daily faucet is quite high at 50,000 satoshi. The faucet is only for tenacious beacuse you will need at worst case 80 days till payout .
Take this link http://ufo-faucet.yzi.me/?id=4708
or http://bitcoin-faucet.net/bitcoin-faucet-ufo.html
