Regular Graphs Page  
   Tables of simple connected k-regular graphs on n vertices and girth at least g.
   http://www.mathe2.uni-bayreuth.de/markus/reggraphs.html

The Four Color Theorem  
   Computer aided proof of the four color theorem by Neil Robertson, Daniel P. Sanders, Paul Seymour and Robin Thomas.
   http://www.math.gatech.edu/~thomas/FC/fourcolor.html

Graphs: Theory-Algorithms-Complexity  
   Resource collection maintained by Thomas Emden-Weinert.
   http://people.freenet.de/Emden-Weinert/graphs.html

Sandpiles in Graphs  
   An application of cellular automata by Angela R. Kerns.
   http://www.cs.wvu.edu/~angela/cs418a/cs418a.html

Network Resources for Colouring a Graph  
   Resources for formulating and solving coloring problems.
   http://mat.gsia.cmu.edu/COLOR/color.html

Signed, Gain and Biased Graphs  
   List of publications and manuscripts annotated by Thomas Zaslavsky.
   http://www.math.binghamton.edu/zaslav/Bsg/

Multicommodity Problems  
   Instances and random generators of multicommodity flow and network design problems.
   http://www.di.unipi.it/di/groups/optimize/Data/MMCF.html

Graphnet Archives  
   Archives of the Graphnet mailing list from February 1990.
   http://listserv.nodak.edu/archives/graphnet.html

Other Graph Theory and Related Pages  
   Miscellaneous pages collected by Stephen C. Locke.
   http://www.math.fau.edu/locke/graphoth.htm

Four Colour Theorem  
   A new proof of the four color theorem by Ashay Dharwadker that uses group theory and Steiner systems.
   http://www.geocities.com/dharwadker/

Graph Colorings with Local Constraints  
   A survey by Zsolt Tuza.
   http://www.pz.zgora.pl/discuss/gt/17_2/g1.htm

A Journey through Intersection Graph County  
   By Erich Prisner.
   http://www.math.uni-hamburg.de/spag/gd/mitarbeiter/prisner/Pris/Rahmen.html

The Hamiltonian Page  
   Hamiltonian cycle and path problems, their generalisations and variations.
   http://www.densis.fee.unicamp.br/~moscato/Hamilton.html

Getgrats: General Theory of Graph Transformation Systems  
   A research network funded by the European Commission.
   http://www.di.unipi.it/~andrea/GETGRATS/

A Survey of Distance-Transitive Graphs  
   By Arjeh M. Cohen.
   http://www.win.tue.nl/~amc/oz/dtg/survey.html

Knight's Tour Problem  
   Solution for chess boards with upto 32 squares.
   http://www.tri.org.au/knightframe.html

TSP Generator  
   Generates a Traveling Salesman Problem map and data for a given set of US cities.
   http://www.sju.edu/~sforman/research/usa_tsp.html

A Constructive Approach to Graph Theory  
   Notes on a semiotic approach to constructing isomorphism invariants of graphs by John-Tagore Tevet.
   http://www.hot.ee/tewet/

Fractal Instances of the Traveling Salesman Problem  
   By Pablo Moscato.
   http://www.ing.unlp.edu.ar/cetad/mos/FRACTAL_TSP_home.html

Harmonious Colourings  
   Notes and bibliography by Keith Edwards.
   http://www.mcs.dundee.ac.uk/~kedwards/harmcol.html

Thrackles  
   Jon Perry's pages on the thrackle conjecture.
   http://www.users.globalnet.co.uk/~perry/maths/thrackle/thrackle.htm

From the Even Cycle Mystery to the L-Matrix Problem and Beyond  
   By Michael Brundage.
   http://spider.ipac.caltech.edu/staff/brundage/presents/thesis/

Benchmarks with Hidden Optimum Solutions for Graph Problems  
   Datasets in DIMACS graph format for Independent Set, Vertex Cover, Clique and Vertex Coloring problems.
   http://www.nlsde.buaa.edu.cn/~kexu/benchmarks/graph-benchmarks.htm

Hamiltonian Circuit Algorithm  
   A new algorithm for finding Hamiltonian circuits with a constructive proof of Dirac's theorem and applications to finding Knight's Tours by Ashay Dharwadker.
   http://www.geocities.com/dharwadker/hamilton/

Counting Hamilton Cycles in Product Graphs  
   By Frans Faase.
   http://home.planet.nl/~faase009/counting.html

Parameters of Directed Strongly Regular Graphs  
   Parameters, constructions and nonexistence information for directed strongly regular graphs.
   http://homepages.cwi.nl/~aeb/math/dsrg/dsrg.html

Traveling Salesman Problem  
   These pages report the history of the TSP and ongoing work to solve large instances.
   http://www.tsp.gatech.edu//