The tech industry has been perplexed by the fact that Twitter has grown extraordinarily quickly even though young people do not tweet nearly as much as their elders do.
Yet perhaps the most interesting phenomenon to observe is not what teenagers are not doing, but what adults are doing.
A report on the reach of social technologies, published Tuesday by Forrester Research, said that in the last year, young people almost universally used social media. (Only 3 percent of 18- to 24-year-olds do not use social tools online.) These people have been using social media for a long time, though, and they are not driving its growth.
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More intriguing is a look at what older adults are doing online. According to Forrester, use of social media among those 35 to 54 jumped 60 percent in the last year. Half of online adults in the United States interact on social networks and more than three-fourths used social media in the last month.
Read More: By CLAIRE CAIN MILLER, New York Times