BlueBaikal airdrops 4.000 BBC tokens (~$3,36) to their airdrop participants for the following simple tasks. They also offer a referral program where you can earn additional BBC for each user you refer.
Step by step guide
Verfiy your email. (+1000 for steps 1-2 // +500 BBC for each referral)
Enter your email and ETH address.
Follow BlueBaikal's Twitter Page
(+3000 for steps 1-4 // +200 BBC for each referral. Additional 100 BBC for each verified references your friends refer.)