In general, we gather news content through broad sweeps. BlueOcean looks at the top 100 links from news.google.com and excludes news specifically published by the brand, including press releases. This way, it excludes sponsored/paid-for content. The news targeting is filtered by industry, brand, and product/service (as applicable).
More detail about our data can be found within the Data Transparency section of the FAQ, starting with this summary.
