The video is a screencast of RhNav - Rhizome Navigation visualizing the Blogosphere as a 3D graph using the technorati API. www.rafelsberger.at is used as a starting point.
S. Lohmann, P. Heim, T. Stegemann, and J. Ziegler. Proceedings of the 14th International Conference on Intelligent User Interfaces (IUI 2010), page 421-422. New York, NY, USA, ACM, (2010)
P. Heim, S. Hellmann, J. Lehmann, S. Lohmann, and T. Stegemann. Proceedings of the 4th International Conference on Semantic and Digital Media Technologies (SAMT 2009), page 182-187. Berlin/Heidelberg, Springer, (2009)