Electronic content, or e-content, refers to digital content that can be transmitted over computer networks like the internet. It includes text, images, graphics, animation, audio, and video. E-content has several advantages for teaching and learning, such as being learner-centered, teacher-friendly, and allowing for flexible self-paced learning. The ADDIE model is commonly used for developing e-content, with phases for analysis, design, development, implementation, and evaluation.