Lee Graham's List: Instructor presence

jolt.merlot.org/...mandernach.htm instructor presence e-learning discussion teaching

jolt.merlot.org/...sheridan_1210.htm

www.pearsonlearningsolutions.com/...nt-retention-in-online-courses instructor presence discussion e-learning

sloanconsortium.org/...ructor-presence-online-courses instructor presence discussion e-learning

www.worldcampus.psu.edu/...workload_strat.pdf instructor presence discussion e-learning