Let's make a list where everyone can earn free bitcoins without investing anything. Let's put all the sites which are paying right now. I will manage this list and I hope everyone will support this by providing some useful links to sites which are paying free Satoshi by any mean. I hope it will greatly helpful for many users.
Sorry but I don't think there is any need of this thread.
Because mostly free Satoshihies are paid by faucets, more than 1k faucets are live.
Bounties comes second which pays in tokens. This are not absolutely free.
Maybe if you have any other idea then sure share.