No other age group matches teens' enthusiasm for the Web–nor their use of broadband connections. Roughly 87 percent of the 12 to 17 age group is online, many at least twice a day, according to a recent Pew Internet and American Life study. That bests the activity of 25 to 29 year olds, which have an 85 percent penetration. And 49 percent of teens have high-speed connections at home–more than any other age group. That means it's easy for them to watch video, chat with friends and listen to MP3s while doing their homework.
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