"B-Learning is a blended way of learning in which traditional in-classroom learning is effectively combined with on-line learning. For the on-line learning, a network lecture distribution system has been developed in order to enable students to take lectures “anytime and anywhere”. A B-Learning system has been also developed, which supports both the in-classroom lecture learning and the network distribution lecture learning. Actual network distribution lectures have been carried out by using these systems in recent 8 years. The results have shown that the network distribution lectures are very effective and the performance is higher than that of in-classroom lectures."