3 steps to an effective online video are outlined: 1) Create evergreen content that remains relevant over time. 2) Focus on storytelling techniques like customer/employee testimonials and scripting to engage viewers. 3) Optimize the video production process with the right location, equipment, and actors. The document notes that online video is a powerful medium, with over 180 million Americans watching billions of videos per month and 67% of internet usage being video-based.