Technology has enabled a multitude of app based training programs as well as on line sites. While we do not recommend any particular site, below are a few that coaches can access to review for ideas and tips.
Little League International http://www.littleleagueu.org
Quality Coaching Baseball http://www.qcbaseball.com/
Youth Baseball Info http://www.youthbaseballinfo.com/
Youth Baseball Basics http://www.youthbaseballbasics.com/
Be a Better Hitter http://www.beabetterhitter.com/