http://spywar2hncz3lkteymwfy7s6qxalsvw37gc4bywcf6v2b5hzjnwt5tad.onion/articles/yahoo.html
Create analytics and reports for external parties, including partners, publishers, advertisers, apps, third-parties and the public regarding the use of and trends within our Services and ads, including showing trends to partners regarding general preferences, the effectiveness of ads and information on user experiences...." [1] A LOT more could be written but this is probably enough to understand that...