Laurie Green, a guidance counselor at Belle Plaine High School, said that an estimate that half of local ninth- and 10th-graders are active in social networking Web sites like Myspace or Facebook is conservative.

Every week, Green sees written examples of serious cyber-bullying, reported the Belle Plaine Herald.

Police, counselors, a representative from the Jacob Wetterling Foundation, and others cautioned students about the dangers of the Internet, especially in the areas of providing personal information to complete strangers.

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