New and updated list of very promising Airdrops and Bounties available in 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 projects available at the moment.
Some tokens like Viberate (VIB), Refereum (RFR), CryptoCarbon (CCRB) or Cappasity (CAPP) are already listed on main exchanges. Another projects are very promising ICOs worth investing like Sphere (SAT), Shivom (OmiX) and LaxmiCoin (LXM).
If you see any other interesting projects, which I have missed here just feel free to comment and ask. I will be thankful for any suggestions.

Shivom (OmiX)

Amazing project with fantastic team and idea. Shivom is powering the next era of genomics through blockchain technology – by protecting identity, personalizing healthcare, transforming lives. You can get worth $12 tokens for registration and $4 for each refferal. Tokens will be distributed at the beginning of June. During the registration fill in all the steps carefully. Highly reccomended!
https://airdropalert.com/cms/join/Shivom/4cb23567-a3bc-3282-8925-93d302938bfd

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

Cappasity (CAPP)

Great project responsible for 3D, VR and AR development. 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

Sphere Social (SAT)

A great project with very experienced and professional team. It is responsible for creating a Decentralized Social Network. One of the best ICOs of 2018. You get 50 Sphere tokens for registration and in the Phase 3 of ICO 20 SAT per refferal. Highly reccomended. Token distribution soon. Already listed on IDEX exchange.
https://sphere.social/?ref_code=6wxph53vrgnb

NextyCoin (NTY)

An innovative and fully developed next generation platform. You can exchange your NTY coins immedietely for Bitcoin and Ethereum and withdraw them. Nexty Platform offers instant transfers, free transactions and price stabilization stystem. You can earn free NTY coins for registration, joining Telegram Group, being active on social media and reffering friends. Coins are distributed every month.
Register:
http://app.nexty.io/account/register?refer=djograft
Join Telegram Group:
https://telegram.me/nextybot?start=djograft

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

Refereum (RFR)

Get free Refereum tokens for registration, watching videos, joining Telegram Group, playing games and reffering friends. Already listed on CoinMarketCap and both OKEX and IDEX exchanges. 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

Esenth Network (ESTH)

Another amazing project connected with Artificial Inteligence. It is responsible for creating The Next Generation AI for Intelectual Property and Data. You can get 100 ESTH for joining both Telegram Channel and Chat Group, 100 for following Twitter and additional 120 ESTH per each reffered person. Tokens will be distributed to your Ethereum Wallet on the 5th May.
http://vy.tc/evKB434

LaxmiCoin (LXM)

LaxmiCoin, known as Bitcoin of India, is the first India's legal digital cryptocurrency. It has been approved officially by India Government. During the ICO period you can get 500 LXM for registration and additional 20 for each refferal. With such an cooperation this coin has a great future perspective.
https://myaccount.laxmicoin.com/register?ref=7ww4izpz22w4404k

CryptoCarbon (CCRB)

The World's Most Innovative Consumer-Oriented Cryptocurrency. Extremely interesting ICO with huge potential. The project is already listed on many exchanges like C-Cex, Livecoin and BTC-Alpha. You get 5$ worth CCRB tokens for registration and 10$ worth for each refferal. You can exchange tokens immedietely on site and withdraw them.
https://ccrb.io/979270

+

DACC (DAC)

Known as a Decentralized Audio Content Community. Very innovative blockchain-based audio project connnecting creators with consumers and uses an incentive way to reward both parties. You can get 168 DACC for filling in your Ethereum Wallet Address and joining Telegram Group. Additionally you earn 168 tokens for reffering each friend.
http://referral2.dacc.co/NS3s4J6K

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

CloudBounce (dBounce)

Very promising AI project connected with music industry. You can get 100 free dBounce tokens for registering and updating your wallet (filling in your Telegram username and Ethereum/Metamask Wallet). Additionally you can earn free tokens for reffering friends.
https://www.cloudbounce.com/dbounce?r=BkGrSSdTdM

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

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

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. You can withdraw token to your wallet or exchange once per week.
https://gamex.co.in?mref=djograft

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

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