English translation: in this case with article; use depends on context
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You would also use it without the article if Internet is part of a compound noun such as Internet development in constructions such as in the example below (see first link).
Exceptions: Murdoch is sure that the Internet development scheme is working. (narrative construction within a text, emphasis on "the scheme").
But as a headline it would read:
Murdoch is sure Internet development scheme is working