Dahn's spokesperson says it's being used in 300 schools in such cities as Buffalo Grove, Ill. and Arlington, Mass.

FORBES: On the Docket

Buffalo Grove Village Trustee Lisa Stone should be told the name of the man she accuses of making defamatory online comments about her 15-year-old son, a judge ruled Monday in a case being watched for its Internet privacy implications.

FORBES: If you're going to anonymously flame someone online, make sure your target is of age