This question may be almost moot these days since most administrations are urging and, in some cases, mandating that faculty members either develop course pages, or develop courses that can be taught in the institution's distance learning program.
Using Technologies to Engage Students 
and Enhance Learning (Randy Bass)
Why Use the Internet in Teaching?
(slide presentation)
Why Use the Internet in Teaching 
(another slide presentation)
Why Use the Internet in Teaching?
(presentation with pros and cons)