A collection of sites to earn free bitcoins. I hope it is useful to you:
 
http://urlbit.co/moonbitcoin
http://urlbit.co/dailyfreebits
http://urlbit.co/freebitcoin
http://urlbit.co/dailybitcoins
http://urlbit.co/bitcoins4me
http://urlbit.co/coinad
http://urlbit.co/bitcrate
http://urlbit.co/bitcoin4u
http://urlbit.co/63ED