Gource - Software Version Control Visualization [code.google.com] is a tool that represents the evolution over time of a software's version control. The file structure behind common software projects are displayed as an animated tree using a force-directed layout. The root directory of the project at its center. Directories appear as branches with files as leaves. The names of individual developers can be seen working on the tree with the exact times they contributed to the project.
You can watch a best-of selection of the visualization tool in action below.
See also Software Development Bloom, SchemaBall, Code Profiles, Linux Kernel Graph, History of Programming Languages, Computer Virus Visualization, Malwarez Cyber Threats and Code Swarm and Virus and Spam Visualization. Thnkx Andrew.