Hi
Let's share a list with video and picture sharing sites. Feel free to add your sites.
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https://www.youtube.com/
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http://www.dailymotion.com/
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http://vimeo.com/
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https://www.myspace.com/video
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https://secure.flickr.com/
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https://www.tumblr.com/
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http://instagr.am/
Also interesting are Tools for searching big data. In my experience they all don't work for porn.
for example images.google.com. See attached screenshot.