There is a cool program out there called VVVV (speak: V4). It's immensely versatile and powerful.
And it does what we in the Visualization corner like: real time animated graphics! But that is not all, it is also capable of generating and controlling sounds, motors, light gear and various other input and output devices. By it's own definition a "multipurpose toolkit".
The first official gathering of VVVV-artists, the NODE 08, took place from the 05th to the 12th of April in Frankfurt am Main/Germany. (Sadly I couldn't be there...)

but:
Photos here: [link]
Read here: [link] and [link]
Video feature (in german) here: [link]
The VVVV-gallery: [link] (first 2 pieces are from the NODE 08)






Next project coming up in this gallery is the Winamp Forums Compilation 7! The original presets have been sent in and distributed to the participants and remixing should be in full swing by now.
Check out the previous installements here. they present a good cut through the community we have here and over on the winamp.com forums.





Visit this wikipedia article for a good definition what audio visualizations are.
I'd like to remind everyone that this gallery is for visualization presets only! No screenshots of visuals nor films/animations are allowed. Neither are pictures that you think might fit your music.
Check out visbot.net where you will find a project of some of the best AVS artists and some tutorials if you would like to try it out yourself. (Please do! )




Some nice recent and not-so-recent visualization packs you should definitely download and check out: