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You can always swing by Google Trends if you want to gauge the popularity of a given search, but visiting that website every time can be a hassle. Thankfully, there's now an easier way: Google has added a subscription option that sends email notifications when there are changes in the interest levels for most searches, including hot searches, specific topics and the top US charts. If you want to see how long an internet meme survives or find out when your favorite team is creating a lot of buzz, you just have to visit Trends' subscription area to get started.

Google Trends in email

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