ACA Network is utilizing blockchain technology to build a next-generation online advertising platform. Our aim is to create a completely fair, transparent system of online advertising transactions. In accordance with technological advances, the online advertising market has continued to expand. In 2018, the worldwide online advertising market is predicted to exceed $281 billion US, and seems likely to continue to expand further. However, there is a problem with the online advertising industry. Online advertising agencies that mediate transactions between advertisers and advertising media are exploiting both sides by claiming borderline fraudulently high handling fees. This is the result of the extremely secretive environment in which online advertising transactions take place. Using blockchain technology, we intend to forge ahead into the future of the online advertising industry by disrupting it with a revolutionarily transparent method of making online advertising transactions.