JupiterResearch predicted in a study that the number of teenagers who go online in the United States will jump to 22 million in 2008 from the current average of 18 million. The study, released Thursday, picked a core group of "teen influencers," who make up around 17 percent of online teenagers and heavily influence both their friends and families. That group spends the most time online--around eight hours per week.
Unlike adults, teenagers spend less time on the Net than watching TV. During the estimated seven hours a week they spend online, most teenagers regularly use instant messaging and browse online content like personal pages and blogs.