Bittube airdrops 5 TUBE tokens (~TBA) to their airdrop participants for the following simple tasks. They also offer a referral programm where you can earn additional TUBE for each user you refer.
Guía paso a paso
Install the BitTube Browser Extension
Register and validate your email address.
Verify your phone number
Hint: You will receive your Tube tokens within a 24 hours delay.
You can refer now additional users and get 5 tokens for each user. You can see your Referral link in Account - Share my referral link. If you see a wrong link, you have to logout and login once again.
You will earn additional tokens while you are surfing with the activated browser extension.