Ok, I'll agree with that. Members are "lending" their balance to FreeBitco.in so that they funds can be used for other things...same as a savings account in a fiat-bank.
With that said - do you have a balance of BTC sitting in a wallet? If so, you should consider devoting some of that to earning this interest. It's not invested in some high-risk scheme, it's not some payment for pool mining. It's merely giving you a realistic payment for leaving a balance in the account.
If you're a diversified investor this is an opportunity you should be seriously considering.
AND, if anyone is concerned about the liquidity FreeBitco.in has to pay out on the balances, let me know and I'll post proof.
As others have said, best way to make profit by interest is to lend bitcoin.
Not exactly. Loaning money runs the risk that you'll never get paid back your principal. That's especially risky with Bitcoin where there is zero way to fight to get your money back if a borrower steals it.
The only risk-free way to earn interest on your Bitcoin right now is at FreeBitco.in...4% annually, paid every day...and 25% commission on the interest your referrals earn.
I understand, that you are propagating website/company, that pays for your signature.
That said, you are still LENDING ie. moving your bitcoins to their storage. You have no control over your bitcoins for 4%... annually. You could make more money, if you just lended fiat in your home country and had full backing of local judicial system at your disposal.
Bitcoin as whole is still high risk investition regardless how you spin it. Risking your entire portfolie for 4% isnt good enough.
If people just screened their borrowers properly and made sure, that their never lend out more than couple of % to any particular one, it is possible to make even 50% a year with low risk. Via companies like Bitlendingclub.
Beat low risk/low reward sites like you posted, I think.