digital marketing passive income works on a ‘hit-or-miss’ principle – placing an advertisement in a magazine and hoping it catches the eye or broadcasting a snippet on the radio and praying it becomes an earworm. Of course, in most cases, some market research goes into a campaign before launching, but there is really only so much you can do to ensure your message reaches your intended audience.https://techaddanews.com/10-ways-to-earn-passive-income/
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