With every transaction either done or not done, each user produces huge swaths of data. Companies utilize this data to personalize advertising and brand visibility. But the problem is that most of the advertising is channelled through platforms like Google and Facebook who charge a hefty amount to allow your messages to reach potential customers. More so, since data is centralized on their platform, they have control on the insights it produces and the revenue thus generated. With Blockchain, power of centralized data will be decentralized. Users become in charge of their data and small businesses and local businesses can reach their potential buyers directly. Advertisers will be able to buy data directly from users and have better avail of the marketing-spend and revenue.