An airdrop for a cryptocurrency is a procedure of distributing tokens by awarding them to existing holders of a particular blockchain currency, such as Bitcoin or Ethereum.

In​ ​most​ ​cases,​ ​to​ ​be​ ​a​ ​recipient​ ​of​ ​an​ ​airdrop​ ​the​ ​only​ ​requirement​ ​is​ ​that​ ​you​ ​have​ ​some​ coins from the relevant blockchain stored​ ​in​ ​your​ ​wallet — ie, if the company doing the airdrop is based on Ethereum, you need to have some ETH; if it’s based on Bitcoin or Ripple, you need to own some BTC or XRP.​ ​You​ ​need​ ​to​ ​be​ ​keeping​ ​your​ ​coins​ ​somewhere​ ​that​ ​has​ ​you​ ​in​ ​control​ ​of​ ​your​ ​own private​ ​keys,​ ​i.e.​ ​not​ ​on​ ​an​ ​exchange.

Quite a few air drops open and close within a relatively short time period…usually days and sometime even hours.
As new ones get added to this site, they will be tagged with the date entered and the newest ones will appear first as opposed to the an alphabetic sort order.

You won’t get rich from air drops, but they are free, and you can probably take advantage of a dozen or more per month and get free coins worth anywhere from $25 to $50.
A lot of them are also task-based, where you get additional coins by following them on Twitter or Facebook, etc.

2018-08-22:
Blockkonnect (XBT)

2018-08-18:
Oodlebit )OODL)

2018-08-17:
MenaPay (MPAY)

2018-08-03:
ASMT

Review.Network (REW)

2018-07-13:
BEET

Bitfair (XBF)

2018-07-11:
Rocket (ROCT)

2018-06-21:
EconoMe (ME)

2018-06-20:
Humancoin (HUMA)

Zerobank (ZB)

2018-06-19:
CoTrader

CAREONCHAIN (REO)

2018-06-11:
FlipNpik (FNP)

Looix

2018-06-08:
Atlantis Blue (ABDT)

Indie Party (IND)

2018-06-05:
Crypto Coin News (C3C)

2018-05-31:
Buglab (BGL)

2018-05-29:
ORME

2018-05-28:
Loyakk

2018-05-23:
DROOTOO

2018-05-22:
eCoinomic (CNC)

KINDS

2018-05-18:
Simmitri (SIM)

2018-05-17:
BitcoinX2

Swiss Alps Mining (SAM)

2018-05-14:
Fructus

2018-05-11:
AcuteCoin (XAC)

2018-05-10:
Blue Whale (BWX)

ICNQ

UEC

2018-05-08:
DirectHome (DIREC)

Opet Foundation (OPET)

2018-05-07:
ABCC

SuchApp

2018-05-04:
Carry (CRE)

Ubiatar

2018-05-03:
Invacio (INV)

2018-05-02:
ConcertVR (CVT)

Treon (TXO)

WebRunes (WRD)

2018-05-01:
Blockport

Unboxed (NBOX)

2018-04-28:
XRIBA

2018-04-25:
DxChain

GladAge (GAC)

Neuromachine (NRM)

Unboxed (NBOX)

2018-04-24:
Typerium (TYPE)

2018-04-23:
LBA

Parsec (PRSC)

WorkCoin (WRK)

2018-04-20:
BrickBlock (BBX)

Coinclub (BST)

Consentium (CSM)

URBIT

2018-04-19:
Bidipass (BDP)

Bitmillex (BTML)

IRIS

Sentinel (UPP)

2018-04-18:
Liberty Lance (LTN)

Mingo (XMC)

SciDex (SDX)

2018-04-16:
SPIKE

2018-04-11:
BIT.GAME (BGC)

Get 25 tokens free at Prontapay” rel=”noopener” target=”_blank”>Prontapay (PRO)

Veiris

2018-04-10:
INV

2018-04-05:
CPROP

Aworker (WORK)

2018-04-04:
7EBIT

Modex

SilentNotary (SNTR)

TTC Protocol (TTC)

2018-04-03:
Cytecoin (CTC)

MaxiMine (MXM)

2018-04-02:
Shopiblock (SHB)

2018-03-30:
BEAT

SSOT Health (SEHR)

Syntera (SSC)

2018-03-29:
Dicet (CIDE)

Ducatur (DUC)

ESENTH

ThinkCoin (TCO)

Agora (VOTE)

VRT World (VRT)

2018-03-28:
ICOcreed (CRD)

Kinguin (KROWN)

2018-03-27:
Cybereits (CRE)

Nukleus (NUK)

2018-03-26:
Birake (BIR)

CoinBundle (BNDL)

Howdoo (UDOO)

Qompass (QPS)

2018-03-23:
ALAX

NAVI

SANC

TALAO

Trial Token (TT)

WEIS

Yuppies (YUP)

2018-03-19:
ADSI

IAGON

LENDO

SWARM

2018-03-16:
Caerus (CAER)

Echarge (ECH)

Kelta (KLT)

Pibble (PIB)

2018-03-15:
LAX

TONS

2018-03-14:
Shivom

Squeezer (SQZR)

2018-03-13:
XRR

2018-03-12:
OUNA

2018-03-11:
Decibels (DCBL)

Hurify (HUR)

2018-03-09:
LightCash (LCCT)

2018-03-08:
INVOX

Ukit (UKT)

2018-03-07:
CloudBounce (DB)

COREX

ESENTH

Gluon

Vendex (VEND)

2018-03-06:
KRYPTONIUM

MoxyOne (SPEND)

2018-03-05:
Bethereum

Datarius (DTRC)

ERC20Fx

Exenium (XNT)

Fan Token (FAN)

Fishcoin (FISH)

insChain (GETX)

Invacio (INV)

Monanex (MNX)

OTPPAY

2018-03-02:
Gladius

Pumpkin Pay (PPKC)

2018-03-01:
Action Rewards (ACTN)

CashBet (CBC)

DCC Finance (DCC)

ExTrade (EXTRA)

fund0x (GUP)

TimeBox (TB)

2018-02-28:
Aeroking (ATO)

Coinpennant (CPT)

COINZAGE

SMOKE

Virtonomics (VICoins)

XpressToken (XPT)

2018-02-26:
Ether Universe (ETU)

Open Source Chain (OSCH)

Viewly

VuzzBee (VBEE)

2018-02-24:
Rate3 (RTE)

RxEAL

2018-02-23:
Cappasity (CAPP)

Apollo DAE

Owndata (OWN)

2018-02-22:
PHNXTOKEN

2018-02-21:
DNN Media

PHARMZ

RewardMob (RMOB)

2018-02-20:
Arab Token

DEXTRONCOIN

GENECHAIN

RedPocket

ZONTO

2018-02-19:
NAUTICUS

2018-02-18:
CTE

SHPING

2018-02-17:
Consentium (CSM)

BitBix

MAXDATA

2018-02-16:
ACTION COIN

BitSong Token

SWIFTDEMAND

TATTI

Yoo-Mi UME (UME)

2018-02-15:
CLASSYCOIN

Crowdvilla (CRV)

CRYPTRIVIA

ODYSSEY (OCN)

PEX-Token (PEXT)

PUMPTOKEN

WOTER (WOT)

XRPC

2018-02-13:
BitDark

COINSTOCKS

SPHERE

2018-02-10:
TLC

Older:
AFFILIATE COIN

Alpha Token

ATF

CELLBLOCKS

CORL

CURRENT

CYL

DOCK.IO

DOLC

DROPIL

DTA

EARN

EDUC

ESCOIN

Ethereum CashPro

HAVVEN

HPT

HUR

JET8

LEGITCOIN

LINO

NKR

NTT

OMNITUDE

ORU

PLAZA

RBLOCK

REDVOLUTION

Rutheneum

SuchApp

THUG

TradePlayz

UPCOIN

VENDICOINS

VIU

WFEE

Here’s a great website where you can learn about cryptocurrencies and alt-coins:
Altcoins Talks