SpotPrices.com

Gold and Silver Coin Statistics
Ratings and values for gold and silver coins.
www.coinmag.com/

PIGALE - Public Implementation of a Graph Algorithm Library and Editor
PIGALE is a graph editor and an algorithm library essentially concerned with planar graphs. Written in C++ and interfaced with the Qt library, it is particularly intended for graph theoretical research. PIGALE is released under GPL.
pigale.sourceforge.net/

Capillary Multi-Path Routing in a Network of a Directed Symmetric Graph
By Emin Gabrielyan.
switzernet.com/

CCVisu: A Tool for Force-Directed Graph Layout
CCVisu is a light-weight Java tool for force-directed graph layout and visual clustering. The layout is minimized using the algorithm of Barnes and Hut, and several energy models are supported. The resulting layouts are provided in text format, as VRML or SVG, or displayed on the screen.
mtc.epfl.ch/

ILOG JViews Graph Layout Package
ILOG JViews Graph Layout Package simplifies complicated diagrams. The package rearranges complex graph data sets into clear on-screen drawings. Core information represented by nodes and links is much easier to understand.
www.ilog.com/

The Open Source Java Graph Library
JGraph is a freely available Java Graph Component for the visualization and layout of graphs.
www.jgraph.com/

Walrus - Graph Visualization Tool
Walrus is a tool for interactively visualizing large directed graphs in three-dimensional space. By employing 3D hyperbolic geometry to display graphs under a fisheye-like distortion, it provides a display that simultaneously shows local detail and the global context.
www.caida.org/

Graph Colorings with Local Constraints
A survey by Zsolt Tuza.
www.pz.zgora.pl/

A Journey through Intersection Graph County
By Erich Prisner.
www.math.uni-hamburg.de/

Graph Visualisation Experiments
Attempts to apply force-directed layout (by Touchgraph) on various datasets, including dmoz.org categories and web site link structures.
kisd.de/