American cellphone subscribers for the first time sent text messages more than they phoned. Teenagers ages 13 to 17 are by far the most prolific texters, sending or receiving 1,742 messages a month, according to Nielsen Mobile. By contrast, 18-to-24-year-olds average 790 messages.
Drilling Down - Letting Our Fingers Do the Talking - NYTimes.com >>
Gaby K. Slezák 
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