This issue commemorates the 100th anniversary of the creation of the juvenile court and the recognition that the developmental differences between children and adults require differences in the ways they are treated by the court system. The feature article, "An Evolving Juvenile Court: On the Front Lines with Judge J. Dean Lewis," reviews the evolution of the juvenile court system and the need to ensure that juvenile courts have the resources necessary to deal with the problems of youth and their families. "The Juvenile Court at 100 Years: A Look Back" by Robert E, Shepherd, Jr., traces the history of the reforms that led to the creation of the juvenile court. "The Juvenile Court: Putting Research To Work for Prevention", by Cindy S. Lederman, notes that the juvenile court has the potential to be the most effective prevention tool in the juvenile justice system if judges take the lead in revitalizing and professionalizing U.S. juvenile courts. Two brief notes comment on 1999 national statistics on juvenile offenders and victims and 34 court-focused Web sites. (Each article contain references.) (SLD)