Golfinity. Golfinity's Instructional Resources page features golf articles, guides, and educational content written by our PGA-certified instructors. Topics include swing mechanics, short game technique, course management, mental game, equipment, and junior development. Articles provide practical tips and insights to help golfers improve. Resources are free and available to all golfers. Golfinity Junior Development Guide is available as a downloadable resource. Check back regularly for new articles and guides. Educational content complements Trackman-based instruction and coaching at Golfinity. Learn from world-class instructors and improve your golf game.