Constantly updated list: https://bitcointalk.org/index.php?topic=90718.0
Free Bitcoin sites:
The Bitcoin faucet.
One time payout per Google account. Explanation available at the site.
Daily Bitcoins.
Can be used once an hour now, and not just once a day.
CoinAd.com.
Can be used once an hour with registration.
Bitcoin Addict
Bitcoiner
Bunny Run.
See here for more info.
Free bitcoins - netlookup.se
Nakabot's Bitcoin Faucet
(Tor hidden service) NakaBot pays out a portion of its winnings in 0.001 increments.
Free BitCoin Daily Scratchcard
kickme.to/goxkeygen
MtGox account needed to redeem the code one receives.
bitcoinpixels.com
0.01 BTC free when signing up to betfair. See here for more info.
memorydealers
Learn how here.
Omnicoins
Learn how here.
cointicket.org
BitCrate *
bitcoins.so *
Roll dice : same numbers - win 0.01
Paperco.in faucet *
Scan a QR code to reveal a MtGox code for 0.0007 BTC.
Gambling sites that give out free bitcoins ( freerolls etc. ) after you join
Dragon's Tale
A casino site, but gives out small amounts for free that you can use to gamble with or withdraw to your own Bitcoin wallet.
Seals with Clubs
Seals has a free poker tournament every hour with a .05BTC prize. There are larger free tournaments from time to time.
See here for more info.
Strike Sapphire
See here for more info.
Not exactly Free but popular "earn" Bitcoin sites
BitVisitor
Earn Bitcoins for visiting websites
CoinTube.TV
Earn Bitcoins for watching TV
Counterpoint to this question: Do faucets actually work?
– Nate Eldredge – 2014-04-30T03:57:34.397-1 "Free bitcoins". 0.00000041 to 0.00000102 BTC every five minutes is less than a dollarcent per hour. I don't think sites like that should be promoted further. – Murch – 2016-06-07T09:55:44.323
@Murch I only added them because someone created a referal edit with these links. Also you would not expect to earn for your next Ferrari by clicking links or do you? Based on my thoughts these get free bitcoins sites are just to get you started with bitcoins and not to get rich by mouse clicking – Salvador Dali – 2016-06-07T10:02:43.073
>They shouldn't be part of the question in the first place. 2. The business model of such sites is exploitative and/or scammy. 3. It's basically impossible to earn enough to fuel even a single transaction on such a site thus they are at best a bad first impression for Bitcoin.
< – Murch – 2016-06-07T10:07:11.247