Zortam Mp3 Player will enable you to listen all your favorite tracks and at the same time enjoy a show of lights and images visualizing the covers of your albums and song lyrics.You can add additional visualization plugins using Zortam visualization SDK .You can watch scrolling lyrics and cover arts together with different visualizations or static jpg backgrounds while playing Mp3's. Player also support switching to full sreen graphic mode.

Visual Mathematics is a highly interactive visualization software (containing -at least- 67 modules) addressed to High school, College and University students. This is a very powerful tool that helps to learn and solve problems by the hundreds in a very short time. 
Visual Mathematics, a member of the Virtual Dynamics Mathematics Virtual Laboratory, is an Intuitively-Easy-To-Use Mathematics visualization software.

StrongGammon is a classical board game - Backgammon. Colorful and 3D realistic visualization. A choice of opponents: human, computer or network game. Different skill levels. Adjustable skins. Cube support. Many optional rules. New strongly AI.

Visualization plugin for WinAmp. Laser effect
It is possible to look at it as look at fire.
A dance it not a set of poses. A music it not a set of sounds. Moreover, color music it not conformity to each sound of the certain color. I think it is conformity of change of image to music.
SoundGraffiti is an attempt to bring the visualization closer to the human perception of music.

Delphi/C++ Builder VCL components library for very easy and fast Data Visualization. The library includes: Scope - scientific chart component for plotting multi-channel data. Waterfall - data plotting component, especially suitable for FFT results. The components allow zooming, navigation, direct printing, clipboard copy, save to file and more. Optimized for very fast data plotting, and support multithreading.
Free for non-commercial use.

PlotLab is a set of Visual C++ components for very easy and fast Data Visualization. The library includes: Scope - scientific chart component for plotting multi-channel data. Waterfall - data plotting component, especially suitable for FFT results. The components allow zooming, navigation, direct printing, clipboard copy, save to file and more. Optimized for very fast data plotting, and support multithreading.
Free for non-commercial use.

PlotLab is a set of .NET 2.0 components for very easy and fast Data Visualization. The library includes: Scope - scientific chart component for plotting multi-channel data. Waterfall - data plotting component, especially suitable for FFT results. The components allow zooming, navigation, direct printing, clipboard copy, save to file and more. Optimized for very fast data plotting, and support multithreading. Free for non-commercial use.

This chess game can be played as a stand-alone game, over the Internet or on a network. It provides 3D visualization of pieces and moves.

JGraph is the leading Open Source Java Graph Visualization Library. It follows Swing design patterns to provide an API familiar to Swing programmers and functionality that provides a range of features. Graph visualization is a central requirement for applications such as workflow editors, computer and telecommunication networks display, flowcharts, VLSI and CAD, business process modeling, organizational charts, entity-relationship diagrams...

3D Visioner is an add-on for Microsoft Visio 2002/2003 and provides features that let you work with your Visio projects. The ability to see whole project in one 3D scene, including all pages, shapes, links, and even visualized hyperlinks aids in the productivity for Microsoft Visio users everywhere. 3D Visioner is designed to help you feel all of the power of third dimension using minimum actions.