I have made a list of new and very promising Airdrops for the end of February and March 2018. There are many Airdrops and Free Coin Giveaways on the Internet, but many of them are just scams or not giving away huge value or potential. That's why I selected the most promising ones' at the moment. If you see any other interesting projects, which I have missed here just feel free to comment and ask.

Viberate (VIB)

A very promising coin from music sharing sector. Already listed on many main exchanges like Bittrex. You get free VIB for registration, refferals and for participating in promotion programs. You can withraw them immedietely and exchange or trade!
https://www.viberate.com/referrals/0c5320dd_0ef82bcc_c8cba581

GameX (GX)

GameX is an amazing gaming token build on Waves Platform. You can earn 12 GX for registration, 3 GX per visiting website, friends refferals and many additional achievements. 1 GX = 1 WAVES. You can withdraw token to your wallet or exchange once per week.
https://gamex.co.in?mref=djograft

Cappasity (CAPP)

Already listed on exchanges like Kucoin and Cryptopia. You get 5 CAPP for registration and additional 10 per refferal.
https://t.me/CappasityAffiliateBot?start=YXV0aDB8NWE4ZmQ4YTQxYTZmMWU3MjBhZTY0NmNm

Refereum (RFR)

Get free Refereum tokens for registration, watching videos, joining Telegram Group, playing games and reffering friends. Already listed on CoinMarketCap and IDEX exchange. Tokens are distributed on your Ethereum/MetaMask Wallet address every week. Getting 500 or 1000 tokens is extremely easy. Huge reccomendation.
Register:
https://refereum.com/?refid=z3xc6zjhi1
Join Telegram Group:
https://refereum.com/Telegram/9b619a3d-6c1c-4d58-9ff6-a5aa0f16f005

SynapseAI

A future competitor of DeepBrainChain and SingularityNET Artificial Inteligence projects. You get 50 SYN for registration and 100 per each refferal.
https://tokensale.synapse.ai/r/13642

Aelf (ELF)

Get Aelf coins for free. Already listed on main exchanges line Binance and ranked 65th on CoinMarketCap! You earn coins by registration, refferals and completing some quick tasks on their site. You can withdraw ELF to an exchange or just keep for a long time.
https://candy.aelf.io/account/register?invitationCode=0F1MbE0ZfL7K

YourBlock (YBK)

YourBlock is an extremely promising new ICO with highly professional and experienced dev team. It is a stricktly private and personal data storage platform. You can get 20 YBK for joining the Telegram Group and additional 10 per each refferal.
https://t.me/yourblock_bot?start=CdbJDXPkpBxdKoRGUbVjpY

CORBIT

A professional decentralized exchange with extremely promicing ICO. Get 30 Corbit tokens for free and 10 per each person you reffer.
https://corbit.website/airdrop/4JC6d

Sphere

A great project with very experienced and professional team. One of the best ICOs of 2018. You get 50 Sphere coins for registration and in the Phase 2 of ICO 20 per refferal.
https://sphere.social/?ref_code=6wxph53vrgnb

WCX

WCX is the new Global Low-Cost Digital Currency Exchange. Extremely interesting project with huge potential. You can get 50 WCX per registration plus 50 per each person you will reffer.
https://ico.wcex.co/?ref=MHNS68eC

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Viuly (VIU)

A decentralized video sharing platform already listed on EtherDelta and Bit-Z exchanges. You get 10 VIU for registration and many more for refferal and video watching.
https://viuly.io/r/K7424175a89d6f5a

Energy Token

Interesting energy project with huge persperctives. Get 100 coins for registration and additional 50 for every refferal.
http://tokenenergy.net/?invite=2779

NAUTICUS

New ICO of Nauticus Blockchain. Right now you can get 100 tokens for registration and additional 100 per each person you reffer. High future potential!
https://nauticus.io/ref/ec0ef379200487a1e190510429e31522248f5cc0e8a957e9cf32d2d025df7390

MaxData

New ICO Airdrop of MaxData project. Professional team, very interesting idea and many free coins for both registration and refferals.
https://airdrop.maxdata.io/?kid=MABCF