Earn.com pays you 1$ per survey in bitcoins. I already took 2 surveys and got paid 0.0002 BTC.
You need to register and have linkedin account with not less than 120 connections (i might be wrong in numbers), after you register you will have to wait for verification.
If you get interested please use my referral link earn.com/salamat257/referral/?a=94ucyolv6y3cpj38
Thanks and have fun!