Crypto airdrops explained. Airdrop In the context of cryptocurrency, an airdrop refers to a marketing strategy used by blockchain projects to distribute free tokens or coins to a large number of people, usually as a way of promoting their project and increasing its adoption. An airdrop can be announced through various channels such as social media, email, or forums, and usually requires participants to perform certain tasks, such as following the project on social media, joining a Telegram gr...