Four instructional principles for alleviating cognitive overload in online learning are suggested: 1) Guide learners to prepare and maintain an effective workstation for accessing online materials, 2) Employ advance organizers for effective online navigation, 3) Arrange instructional materials for easy online manipulation, and 4) Organize instruction to facilitate learners toward developing personal cognitive strategies for meaningful interpretation. This article concludes that these instructional principles should be empirically examined about their effects on online learning achievement.