Of course Google is not the Web, still it is interesting to see how much issues are searched on Google over time. The quickest way to explore de dynamic of a controversy. Works only with ‘hot’ issues.
From the website: “With Google Trends, you can compare the world's interest in your favorite topics. Enter up to five topics and see how often they've been searched on Google over time. Google Trends also shows how frequently your topics have appeared in Google News stories, and in which geographic regions people have searched for them most.”

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