The library for professional-quality creative coding in C++ (ça m'a l'air puissant, caramba)

a bit in the audiosurf idea, more basic though

information visualization... really interesting projects, related to music

Yet another way to organize your music ...

"a website where interesting datasets can be mapped to interesting visualizations."

collects votes on word/colour associations

"un projet en développement constant ancré dans le domaine de la visualisation de données complexes, utilisant les flux numériques des agences de presse sur Internet (dépêches/images/sons/vidéos) comme matériaux mouvants"

realtime flow of livejournal posts

organic visualizations of open source projects

defrag + visualization + allows you to set some most used files to the fastest sectors

Mail Trends lets you analyze and visualize your email (as extracted from an IMAP server).

BioFEM (for finite element problems); BioTensor (for post-processing and visualization of DWI MRI data); BioImage (for the processing and visualization of 3-dimensional data); and FusionViewer (for visualizing 3D scalar and vector magnetic fusion data).

Wonderful :D Try to save the swf and put an mp3 renamed comingsoon.mp3 in the same directory ;)

"Many Eyes is a bet on the power of human visual intelligence to find patterns. Our goal is to "democratize" visualization and to enable a new social kind of data analysis."

"This is a site for large data sets and the people who love them: the scrapers and crawlers who collect them, the academics and geeks who process them, the designers and artists who visualize them."

"Digital Urban is written by Dr Andrew Hudson-Smith, aimed at examining the latest techniques to visualise the city scape via digital media it covers a lot of the work going on at the Centre for Advanced Spatial Analysis, University College London.
"

videogame that analyzes your music and reflects it in the track you're racing on, the traffic, ...

computer program for analysing film sequences