An airdrop is a distribution of a cryptocurrency token or coin, usually at no cost, to numerous pocket speeches. Airdrops are primarily implemented as a method of gaining attention and fresh followers, resulting in a larger user-base and also a broader disbursement of coins. Cryptocurrency fans can acquire free cryptocurrency by encouraging projects who release coins through an Airdrop. Many times, Airdrops will have requirements such as joining a Telegram channel, retweeting a tweet, or even inviting new users to the undertaking. If the participant needs to contribute capital to the project, then this isn't thought to be an airdrop.
Cryptoknowmics lists popular airdrops in their feed. You can find the hottest, new, ethereum and much more airdrop alert on Cryptoknowmics.