In der Hilfe steht unter 2.: "Trends for Websites combines information from a variety of sources, such as aggregated Google search data, aggregated opt-in anonymous Google Analytics data, opt-in consumer panel data, and other third-party market research."

> http://www.google.com/intl/en/tre nds/websites/help/index.html kopieren

Was könnte denn dieses "other third-party market research" bedeuten? Gibt es irgendwo qualifizierte Spekulationen?