Tools

BuGLe - A tool for debugging applications that use OpenGL.

FRAPS - FPS (Frames Per Second), video capture, and screen capture for DirectX and OpenGL applications.

gDEBugger - OpenGL debugger - Commercial OpenGL debugger

glsldevil - OpenGL GLSL Debugger - A tool for debugging the OpenGL shader pipeline, supporting GLSL vertex, fragment, and geometry shaders. Includes screenshots, documentation and downloads.

The SphereXP - 3D desktop replacement for Microsoft Windows XP