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YouTube now suggests new content by colour
(szmer.info)
This is a most excellent place for technology news and articles.
The resources used to implement this aren't the same as the ones that would be used to address some of the other issues, as the ones I know of are more social/legal ones.
I bet this was mostly done by a single coder who showed it off and management thought it was a fun thing so added it to the main site.