Every 30 minutes:
http://www.freebitcoins.me
http://www.thefreebitcoins.com
http://www.canhasbitcoin.tk
http://www.faucetbtc.com
http://www.btc4you.com
http://www.freebtc4all.com
http://www.virtualfaucet.com
http://www.elbitcoingratis.es

Every Hour:
http://dailybitcoins.org
http://www.bitcoins4.me
http://coinad.com

Everyday:
http://bitvisitor.com
http://coinvisitor.com
http://cointube.tv
http://netlookup.se/free-bitcoins/
http://bithits.info
http://boklund.nu/bunnyrun

Work:
http://free.btc.pt
http://bitcoinget.com

ETC:
http://coinurl.com
http://bitbin.it
http://bitpasta.com