A great TED talk from Tim Berners-Lee discusses the potential and possibilities of merging open data and data visualization into fun and fascinating new ways.
At TED2009, Tim Berners-Lee called for “raw data now” — for governments, scientists and institutions to make their data openly available on the web. At TED University in 2010, he shows a few of the interesting results when the data gets linked up.
You might also want to check out my Data Visualisation References resource list, aspiring to be the most comprehensive on the net. If you miss anything that I might be able to find for you or if you yourself want to share a resource, please leave a comment.