Automated ways of buying and selling ads, leveraging SSPs and DSPs:
Supply Side Platforms (SSPs): Well known in the digital ecosystem, publishers use SSPs to sell their inventory (including video) in an automated manner to ad exchanges and demand-side platforms (DSPs). Major SSPs include Rubicon Project, BrightRoll, PubMatic and AppNexus.
Demand Side Platforms (DSPs): Software that allows buyers to purchase display, video, mobile and search ads in an automated manner across a variety of inventory sources (including SSPs). Major DSPs include MediaMath, DoubleClick and Facebook Ads Manager.