Brave, a browser that improves browsing speed by eliminating unwanted ads, has announced a new blockchain-based digital advertising platform using an Ethereum-based unit of exchange called the Basic Attention Token (BAT) to support a more efficient, transparent and decentralized Internet advertising marketplace.
https://www.cryptocoinsnews.com/brave-announces-blockchain-digital-advertising-platform-with-ethereum-based-token-rewards-for-users/