Blended learning combines online and in-person instruction. It allows for personalized learning and keeps learners engaged through varied content. Instructors can track learner trends to improve training. Key components include self-paced eLearning, virtual classrooms, social learning, and mobile learning. There are various models that blend online and face-to-face instruction in different ways. Blended learning improves costs and retention while providing a personalized experience, though challenges include gaining buy-in and ensuring learners take the training seriously. Design tips include starting small, making courses social, and gathering feedback.