CGLX (Cross-Platform Cluster Graphic Library ) is a flexible transparent OpenGL-based graphics framework for distributed high performance visualization systems in a master-slave setup. The framework was developed to enable OpenGL programs to be executed on visualization clusters such as a high resolution tiled display system and to maximize the achievable performance and resolution for OpenGL based applications on such systems.

The Flamenco search interface framework has the primary design goal of allowing users to move through large information spaces in a flexible manner without feeling lost. A key property of the interface is the explicit exposure of category metadata, to guide the user toward possible choices, and to organize the results of keyword searches. The interface uses hierarchical faceted metadata in a manner that allows users to both refine and expand the current query, while maintaining a consistent representation of the collection's structure. This use of metadata is integrated with free-text search, allowing the user to follow links, then add search terms, then follow more links, without interrupting the interaction flow.

The MIPAV (Medical Image Processing, Analysis, and Visualization) application enables quantitative analysis and visualization of medical images of numerous modalities such as PET, MRI, CT, or microscopy. Using MIPAV's standard user-interface and analysis tools, researchers at remote sites (via the internet) can easily share research data and analyses, thereby enhancing their ability to research, diagnose, monitor, and treat medical disorders.

AMIDE is a competely free tool for viewing, analyzing, and registering volumetric medical imaging data sets. It's been written on top of GTK+ , and runs on any system that supports this toolkit (Linux, Windows, Mac OS X with fink, etc.).

an open source toolkit for medical image conversion

Review Board is a powerful web-based code review tool that offers developers an easy way to handle code reviews. It scales well from small projects to large companies and offers a variety of tools to take much of the stress and time out of the code review process.

hawKeye is a network monitor different from other similar opensource networking tools such as Ethereal or Ettercap in that it focuses on allowing direct visualization of content that was transmitted during the capture.

Datamob highlights the connection between public data sources and the interfaces people are building for them.

The nMod n-Body Modelling Toolkit is a collection of tools for n-Body modelling designed to run on ordinary PCs. It can be used for computational astronomy, spaceflight simulation, or general n-Body problem research. Tutorials are provided to help you learn about n-Body modelling and how to use nMod.

This visualization, called code_swarm, shows the history of commits in a software project.