Google recently killed off several experimental projects, but these eight live on
What is it: A tool that charts out correlations between keywords you enter, mapped over time, based on Web search activity on Google
Google Correlate won't settle the whole "correlation does not imply causation" argument, but it is nonetheless fun to tinker around with for trivial pursuits. Plus, anything mapped out in a pretty chart looks authoritative, no matter how ridiculous the search term is.
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