For a lot of stuff, online is the way things are going. The tech is there already, WebCT, that kind of thing. As for interactions w/your prof, you can have online office hours & a lot of school already have course forums where you can get most answers from your peers or the moderator/TA of the forum.

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FOR CAIN: If you do not change direction, you may end up where you are heading.--Lao-Tzu