Airdrop

An airdrop is a marketing strategy used by blockchain projects to distribute free tokens to cryptocurrency wallet holders. Airdrops can be conducted to raise awareness, reward loyal users, or encourage broader adoption of a token. Users often need to complete certain tasks, such as joining social media channels, sharing content, or holding a specific cryptocurrency, to qualify for an airdrop. 

Example: In 2017, the Stellar network conducted a large airdrop by distributing $125 million worth of XLM to users holding Bitcoin. This airdrop helped Stellar gain significant attention and brought thousands of new users into its ecosystem.