ie, deal with the multiple copies in a smart way. this reminds me of the tag consolidation manuel was talking about the other day, only much much harder.
When I worked at Amazon, there was a lot of effort into recognizing that 2 items in the catalog were actually the same item. That was called item authority. I was recently browsing around in YouTube and I noticed how bad the site is about dealing with multiple copies of the same content. For example, on Weird Al’s video, “White & Nerdy“, look at the related videos.