When did Marketing Research begin using these methodologies (Mail/Phone/Internet)?

Marketing Research began using Paper Surveys, then began to Mail their surveys out. Once the telephone became wide-spread, the use of Call Centers emerged to conduct Telephone Interviews. Lastly, the Internet has become the top choice for researchers, but when did that transition truly begin?

A little technical and broad, but I'd like estimates (or exact dates in year) as to when these transitions took place.

I'm also not including fax, because that is a medium point between telephone and internet. This methodology wasn't very prominent either.