Reading:
Michael J. Sipusic, Robert L. Pannon, Randall B. Smith, John Dutra, James F. Gibbons and William R. Sutherland, "Virtual Collaborative Learning: A Comparison between Face-to-Face Tutored Video Instruction (TVI) and Distributed Tutored Video Instruction (DTVI)" Sun Microsystems Tech Report SMLI TR-99-72, 1999.