I don't think you can ever out rank YouTube or Wikipedia. If you are number 3 behind them, you are doing ok.

That said, I wonder why all your pages are in google supplemental index? Usually it means; 1. no deep links to other pages 2. all the pages look the same to Google bot (same page title, same content, etc.) . When I clicked on your links, I went to another domain. Is this a competing site? I wonder why you want to split your site on different domains?

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