What's Twitter good for? Mind reading

Whether you have an account on Twitter or not, the site's search service is an amazing mind-reading tool, letting you see not just what individuals are thinking about, but what groups are focusing on, too.

A well-honed search can reveal how other people feel about your company, your latest public talk and your favorite TV show. The ten trending topics that appear on the search page and change constantly give you insight into the things a lot of people find important at any given moment.

Key to this element of Twitter is that the search results update in real time. Here you can see two recent Tuesday morning searches. We took the top screenshot as Obama was wrapping up a speech; the 191 new results showed up within less than a minute. In the bottom screenshot, the fresh results took about ten minutes to accumulate.

What's Twitter good for? Mind reading

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