Earn.Com
Earn.com register yourself with your linkedin profile to get yourself verified instantly and start earning through surveys.
All you have to do is answer the simple survey regarding upcoming ICO and Airdrops and you get paid in bitcoin as of now.
They have lots of upcoming plans and going to launch their own social tokens and good thing is you get 1$ dollar for every sign up.
I have been using this app from the beginning when it was called 21.co now it changed to earn.com and I have earned more than 100 dollars in bitcoin and cashed out.
Referral Link: earn.com/mohammedakhil/referral/?a=5ifwc94rj3qm9vs8