Coinbase: Learn about Stellar Lumens (XLM)

Earn $50 of XLM for learning about Stellar and inviting your friends
Coinbase Earn is giving out one billion Stellar Lumens (XLM) from the Stellar Development Foundation to millions of eligible users to teach them about the Stellar protocol. Stellar for developers
The Stellar network has a particular focus on making it convenient for developers to execute rapid transfers of currency between businesses, to integrate with a variety of different payment systems, and to tokenize existing assets and currencies such as US dollars and euros. The Stellar Lumen (XLM) — the native asset of the Stellar network — acts as a universal translator between each currency supported by the Stellar network, aiming to allow people and companies using Stellar to send any form of currency quickly, cheaply, and globally.

Source: blog.coinbase.com