If I want to say something like

I watch videos at/in/on MIT open courseware.

Shall I use 'at'/'in'/'on'?
More generally, when talking about websites, which one shall I use?

  • 1
    I'd say on, considdering 'MIT open courseware' as the platform on which you watch videos. You also watch videos on YouTube. – Vlammuh Jul 25 '15 at 6:48
  • Somewhat related questions: here and here – CowperKettle Jul 25 '15 at 8:36

I suggest you to use "on" because when we are watching something on screen, using "on" is more appropriate.

  • 4
    Please be more elaborate. Unsourced claims may be downvoted or deleted. – M.A.R. Jul 25 '15 at 9:37

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