1. Training via the Internet (e-training) for adults must be based on the following principles: (1) learning is an active process wherein the learner constructs knowledge rather than acquires it and (2) instruction is a process of supporting this construction rather than communicating knowledge. E-training can successfully accommodate such features using available technologies. 2. Because e-training is self directed, it is uniquely adaptable to learners with different learning styles, interests, and cultural beliefs. E-training also affords flexible pacing, which is ideal for instruction aimed at both new and experienced workers. 3. As the predicted global economy becomes reality, qualified OSH personnel will be needed on a global scale. To meet new and evolving needs worldwide, professionals must have access to information and training regardless of location. E-training is the most promising approach to meeting this demand. 4. Currently, occupational safety and health e-training does not fulfill its potential. Most training programs do not encourage higher level cognition, critical thinking, or transfer of knowledge. Therefore, training effectiveness research is needed to improve the state of e-training.