I came across this today: link and found it incredibly interesting.

Essentially what it is doing is displaying relationships between different types of data and tags that tag it. What I find interesting is the way it merges lots of different types of data - twitter, video, photos, documents and shows them in one screen. I also liked how you could select a group of tags (on the left) and expose relationships.

However this data doesn't make sense to me and the user interface for some reason isn't clear enough... it reminds me a bit of MetaCrap. It could also do with a search engine. I think half the problem here however is that it is based on the content creators tagging system and this differs from the tagging system the other creators of content are using. As a result you get a mess of tags that are maybe too loose in their meaning or irrelevant to the things they are near by. However I can see that it's a mess..

In the right context however this would be amazing. I'd love to see this hooked into some data I understand and see what it is like.