In or on?

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Jan 28, 2010 21:25
I have a question about a preposition.

We usually say "I read the article in the newspaper" or "I saw it in the newspaper." When it comes to the Internet, however we say "I read the article on the web" or "I saw it on the site."

Why do we use the different preposition between a newspaper and a net? What is there any difference of nuance?