====== Automatic Graph Drawing ====== This page is devoted to the mathematical field of automatic graph drawing. An excellent introduction to graph drawing can be found in the following article (in German, sorry): //Petra Mutzel:// **[[http://ls11-www.cs.tu-dortmund.de/people/gutweng/dfgihk.pdf|Zeichnen von Diagrammen: Theorie und Praxis]]** ===== Books on Graph Drawing ===== * [[http://www.crcpress.com/product/isbn/9781584884125|Handbook of Graph Drawing and Visualization]]\\ //Roberto Tamassia (Ed.)//\\ Discrete Mathematics and Its Applications Serie\\ Chapman and Hall / CRC Press, 2013 * [[http://www.worldscibooks.com/compsci/5648.html|Planar Graph Drawing]]\\ //Takao Nishizeki, Md. Saidur Rahman//\\ Lecture Notes Series on Computing, Vol. 12\\ World Scientific, 2004 * [[http://www.springeronline.com/sgw/cda/frontpage/0,11855,1-10045-72-3062342-0,00.html|Graph Drawing Software]]\\ //Petra Mutzel, Michael Jünger (Eds.)//\\ Mathematics + Visualization Series\\ Springer, 2004 * [[http://www.worldscibooks.com/compsci/4902.html|Graph Drawing and Applications for Software Engineers]]\\ //Kozo Sugiyama//\\ Series on Software Engineering and Knowledge Engineering, Vol. 11\\ World Scientific, 2002 * [[http://www.springeronline.com/sgw/cda/frontpage/0,11855,5-164-22-2132852-0,00.html|Drawing Graphs: Methods and Models]]\\ //Michael Kaufmann, Dorothea Wagner (Eds.)//\\ Lecture Notes in Computer Science 2025\\ Springer, 2001 * [[http://vig.prenhall.com/catalog/academic/product/0,1144,0133016153,00.html|Graph Drawing: Algorithms for the Visualization of Graphs]]\\ //Ioannis G. Tollis, Giuseppe Di Battista, Peter Eades, Roberto Tamassia//\\ Prentice Hall, 1998 ===== Graph Drawing Conferences and Proceedings ===== This list contains only the annual Graph Drawing Symposiums. Further interesting conferences and workshops can be found [[http://ls11-www.cs.tu-dortmund.de/people/gutweng/cf/cf.html|here]]. * **[[http://gd2013.labri.fr/|Graph Drawing: 21st International Symposium, GD 2013]]**\\ Bordeaux, France, September 23-25, 2013\\ Stephen Wismath, Alexander Wolff (Eds.), LNCS 8242, Springer 2013 * **[[http://www.gd2012.org/|Graph Drawing: 20th International Symposium, GD 2012]]**\\ Redmond, WA, USA, September 19-21, 2012\\ [[http://dx.doi.org/10.1007/978-3-642-36763-2|Walter Didimo, Maurizio Patrignani (Eds.), LNCS 7704, Springer 2013]] * **[[http://www.win.tue.nl/GD2011/|Graph Drawing: 19th International Symposium, GD 2011]]**\\ Eindhoven, Netherlands, September 21—23, 2011\\ [[http://dx.doi.org/10.1007/978-3-642-25878-7|Bettina Speckmann, Marc van Kreveld (Eds.), LNCS 7034, Springer 2012]] * **[[http://www.graphdrawing.org/gd2010/|Graph Drawing: 18th International Symposium, GD 2010]]**\\ Konstanz, Germany, September 21—24, 2010\\ [[http://dx.doi.org/10.1007/978-3-642-18469-7|Ulrik Brandes, Sabine Cornelsen (Eds.), LNCS 6502, Springer 2011]] * **[[http://www.cdm.depaul.edu/gd2009|Graph Drawing: 17th International Symposium, GD 2009]]**\\ Chicago, IL, USA, September 22—25, 2009\\ [[http://dx.doi.org/10.1007/978-3-642-11805-0|David Eppstein, Emden R. Gansner (Eds.), LNCS 5849, Springer 2010]]\\ Selected papers: [[http://jgaa.info/volume15.html|Journal of Graph Algorithms and Applications 15(1), 2011]] * **[[http://www.ics.forth.gr/gd2008/|Graph Drawing: 16th International Symposium, GD 2008]]**\\ Heraklion, Greece, September 21—24, 2008\\ [[http://dx.doi.org/10.1007/978-3-642-00219-9|Ioannis G. Tollis, Maurozio Patrignani (Eds.), LNCS 5417, Springer 2009]]\\ Selected papers: [[http://jgaa.info/volume14.html|Journal of Graph Algorithms and Applications 14(1), 2010]] * **[[http://www.cs.usyd.edu.au/~visual/gd2007|Graph Drawing: 15th International Symposium, GD 2007]]**\\ Sydney, Australia, September 24—26, 2007\\ [[http://dx.doi.org/10.1007/978-3-540-77537-9|Seok-Hee Hong, Takao Nishizeki, Wu Quan (Eds.), LNCS 4875, Springer 2008]]\\ Selected papers: [[http://jgaa.info/volume13.html|Journal of Graph Algorithms and Applications 13(3), 2009]] * **[[http://gd2006.org/|Graph Drawing: 14th International Symposium, GD 2006]]**\\ Karlsruhe, Germany, September 18—20, 2006\\ [[http://dx.doi.org/10.1007/978-3-540-70904-6|Michael Kaufmann, Dorothea Wagner (Eds.), LNCS 4372, Springer 2007]]\\ Selected papers: [[http://jgaa.info/volume12.html|Journal of Graph Algorithms and Applications 12(1), 2008]] * **Graph Drawing: 13th International Symposium, GD 2005**\\ Limerick, Ireland, September 12—14, 2005\\ [[http://dx.doi.org/10.1007/11618058|Patrick Healy, Nikola S. Nikolov (Eds.), LNCS 3843, Springer 2006]]\\ Selected papers: [[http://jgaa.info/volume11.html|Journal of Graph Algorithms and Applications 11(2), 2007]], [[http://www.sciencedirect.com/science/journal/0012365X|Discrete Mathematics 309(7), 2009]] * **Graph Drawing: 12th International Symposium, GD 2004**\\ New York, NY, USA, September 29—October 2, 2004\\ [[http://dx.doi.org/10.1007/b105810|János Pach (Ed.), LNCS 3383, Springer 2005]]\\ Selected papers: [[http://jgaa.info/volume09.html|Journal of Graph Algorithms and Applications 9(3), 2005]], [[http://www.springerlink.com/content/0178-4617/47/4/|Algorithmica 47(4), 2007]] * **Graph Drawing: 11th International Symposium, GD 2003**\\ Perugia, Italy, September 2003\\ [[http://dx.doi.org/10.1007/b94919|Giuseppe Liotta (Ed.), LNCS 2912, Springer, 2004]]\\ Selected papers: [[http://jgaa.info/volume09.html|Journal of Graph Algorithms and Applications 9(1), 2005]], [[http://www.sciencedirect.com/science/journal/0166218X|Discrete Applied Mathematics 155(9), 2007]] * **Graph Drawing: 10th International Symposium, GD 2002**\\ Irvine, CA, USA, August 26—28, 2002\\ [[http://dx.doi.org/10.1007/3-540-36151-0|Michael T. Goodrich, Stephen G. Kobourov (Eds.), LNCS 2528, Springer 2002]]\\ Selected papers: [[http://jgaa.info/volume08.html|Journal of Graph Algorithms and Applications 8(2), 2004]] * **[[http://www.ads.tuwien.ac.at/gd2001/|Graph Drawing: 9th International Symposium, GD 2001]]**\\ Vienna, Austria, September 2001\\ [[http://dx.doi.org/10.1007/3-540-45848-4|Petra Mutzel, Michael Jünger, Sebastian Leipert (Eds.), LNCS 2265, Springer, 2002]]\\ Selected papers: [[http://jgaa.info/volume07.html|Journal of Graph Algorithms and Applications 7(4), 2003]] * **[[http://www.cs.virginia.edu/~gd2000/|Graph Drawing: 8th International Symposium, GD 2000]]**\\ Colonial Williamsburg, VA, USA, September 2000\\ [[http://dx.doi.org/10.1007/3-540-44541-2|Joe Marks (Ed.), LNCS 1984, Springer, 2001]]\\ Selected papers: [[http://jgaa.info/volume06.html|Journal of Graph Algorithms and Applications 6(3), 2002]] * **[[http://kam.mff.cuni.cz/conferences/GD99/|Graph Drawing: 7th International Symposium, GD '99]]**\\ Stirin Castle, Czech Republic, September 1999\\ [[http://dx.doi.org/ 10.1007/3-540-46648-7|Jan Kratochvíl (Ed.), LNCS 1731, Springer, 2000]]\\ Selected papers: [[http://jgaa.info/volume06.html|Journal of Graph Algorithms and Applications 6(1), 2002]] * **Graph Drawing: 6th International Symposium, GD '98**\\ Montréal, Canada, August 1998\\ [[http://dx.doi.org/10.1007/3-540-37623-2|Sue H. Whitesides (Ed.), LNCS 1547, Springer 1999]]\\ Selected papers: [[http://jgaa.info/volume04.html|Journal of Graph Algorithms and Applications 4(3), 2000]] * **[[http://www.inf.uniroma3.it/calendar/gd97/|Graph Drawing: 5th International Symposium, GD '97]]**\\ Rome, Italy, September 18—20, 1997\\ [[http://dx.doi.org/10.1007/3-540-63938-1|Giuseppe Di Battista (Ed.), LNCS 1353, Springer, 1997]]\\ Selected papers: [[http://jgaa.info/volume03.html|Journal of Graph Algorithms and Applications 3(4), 1999]] * **Graph Drawing: Symposium on Graph Drawing, GD '96**\\ Berkeley, California, USA, September 18—20, 1996\\ [[http://dx.doi.org/10.1007/3-540-62495-3|Stephen North (Ed.), LNCS 1190, Springer 1997]] * **Graph Drawing: Symposium on Graph Drawing, GD '95**\\ Passau, Germany, September 1995\\ [[http://dx.doi.org/10.1007/BFb0021783|Franz J. Brandenburg (Ed.), LNCS 1027, Springer 1996]] * **[[http://www.cs.brown.edu/people/rt/gd-94.html|Graph Drawing: DIMACS International Workshop, GD '94]]**\\ Princeton, New Jersey, USA, October 1995\\ [[http://dx.doi.org/10.1007/3-540-58950-3|Roberto Tamassia, Ioannis G. Tollis (Eds.), LNCS 894, Springer 1995]] * **ALCOM International Workshop on Graph Drawing**\\ Sèvres, Parc of Saint Cloud, Paris, September 25—29, 1993\\ Guiseppe Di Battista, Peter Eades, Hubert de Fraysseix, Pierre Rosenstiehl, Roberto Tamassia [[http://ls11-www.cs.tu-dortmund.de/people/gutweng/gd93-v2.pdf|(PDF)]] * **Report on the International Work Meeting on Graph Drawing**\\ Marino (Rome), Italy, June 4—5 1992\\ Giuseppe Di Battista, Roberto Tamassia [[http://ls11-www.cs.tu-dortmund.de/people/gutweng/gd92-report.pdf|(PDF)]] ===== Dagstuhl Seminars on Graph Drawing ===== * **[[http://www.dagstuhl.de/de/programm/kalender/semhp/?semnr=13151|Drawing Graphs and Maps with Curves]]**\\ //Sara Fabrikant// (Universität Zürich, CH), //Stephen G. Kobourov// (University of Arizona – Tucson, US), //Martin Nöllenburg// (KIT – Karlsruhe Institute of Technology, DE), //Monique Teillaud// (INRIA Sophia Antipolis – Méditerranée, FR)\\ Seminar 13151, 7.--12.04.2013 * **[[http://www.dagstuhl.de/de/programm/kalender/semhp/?semnr=11191|Graph Drawing with Algorithm Engineering Methods]]**\\ //Camil Demetrescu// (University of Rome "La Sapienza", IT), //Michael Kaufmann// (Universität Tübingen, DE), //Stephen Kobourov// (University of Arizona - Tucson, US), //Petra Mutzel// (TU Dortmund, DE)\\ Seminar 11191, 8.--13.05.2011 * **[[http://www.dagstuhl.de/de/programm/kalender/semhp/?semnr=08191|Graph Drawing with Applications to Bioinformatics and Social Sciences ]]**\\ //Stephen P. Borgatti// (University of Kentucky - Lexington, US), //Stephen Kobourov// (University of Arizona - Tucson, US), //Oliver Kohlbacher// (Universität Tübingen, DE), //Petra Mutzel// (TU Dortmund, DE)\\ Seminar 08191, 4.--9.05.2008\\ [[http://drops.dagstuhl.de/portals/index.php?semnr=08191|Dagstuhl Seminar Proceedings]] * **[[http://www.dagstuhl.de/de/programm/kalender/semhp/?semnr=05191|Graph Drawing]]**\\ //Michael Jünger// (University of Köln, DE), //Stephen Kobourov// (University of Arizona - Tucson, US), //Petra Mutzel// (University of Dortmund, DE)\\ Seminar 05191, 8.--13.05.2005\\ [[http://drops.dagstuhl.de/portals/index.php?semnr=05191|Dagstuhl Seminar Proceedings]] ===== Journals ===== * [[http://www.springerlink.com/link.asp?id=100117|Algorithmica]], Springer-Verlag * [[http://www.springerlink.com/link.asp?id=102516|Combinatorica]], Springer-Verlag * [[http://www.springerlink.com/link.asp?id=100356|Discrete and Computational Geometry]], Springer-Verlag * [[http://www.sciencedirect.com/science/journal/0012365X|Discrete Mathematics]], Elsevier * [[http://www.sciencedirect.com/science/journal/15725286|Discrete Optimization]], Elsevier * [[http://www.springerlink.com/link.asp?id=101790|Graphs and Combinatorics]], Springer-Verlag * [[http://www.sciencedirect.com/science/journal/00958956|Journal of Combinatorial Theory, Series B]], Elsevier * [[http://www.sciencedirect.com/science/journal/15708667|Journal of Discrete Algorithms]], Elsevier * [[http://dl.acm.org/citation.cfm?id=J430|Journal of Experimental Algorithmics (JEA)]], ACM * [[http://www.cs.brown.edu/publications/jgaa/|Journal of Graph Algorithms and Applications (JGAA)]] * [[http://www3.interscience.wiley.com/cgi-bin/jhome/35334|Journal of Graph Theory]], John Wiley & Sons * [[http://portal.acm.org/browse_dl.cfm?linked=1&part=journal&idx=J401&coll=ACM&dl=ACM&CFID=339585&CFTOKEN=26934394|Journal of the ACM]] * [[http://www.springerlink.com/link.asp?id=103081|Mathematical Programming]], Springer-Verlag * [[http://epubs.siam.org/sam-bin/dbq/toclist/SICOMP|SIAM Journal on Computing]] * [[http://epubs.siam.org/sam-bin/dbq/toclist/SIDMA|SIAM Journal on Discrete Mathematics]] * [[http://epubs.siam.org/sam-bin/dbq/toclist/SIOPT|SIAM Journal on Optimization]] * [[http://www3.interscience.wiley.com/cgi-bin/jhome/1752|Software Practice and Experience, John Wiley & Sons]] * [[http://www.springerlink.com/link.asp?id=100369|Theory of Computing Systems, Springer-Verlag]] ===== Benchmark Sets ===== * **Rome-Graphs** and **AT&T-Graphs** at [[http://www.graphdrawing.org/data|graphdrawing.org]] or download the [[http://ls11-www.cs.tu-dortmund.de/people/gutweng/rome-lib.zip|original Rome library]] [6MB] * **Artificial Graphs** ([[http://ls11-www.cs.tu-dortmund.de/people/gutweng/artificial-graphs.zip|.zip file]] [6.6MB])\\ A collection of non-planar graphs with known crossing numbers. This benchmark set has been used in the experimental study on crossing minimization by [[http://hdl.handle.net/2003/27430|Carsten Gutwenger]]. * **Planexp Benchmark Set** ([[http://ls11-www.cs.tu-dortmund.de/people/gutweng/planexp.zip|.zip file]] [2.4MB])\\ A collection of non-planar graphs with planar subgraphs used in an experimental evaluation of crossing minimization heuristics by Markus Chimani and Carsten Gutwenger. * **[[http://www.cise.ufl.edu/research/sparse/matrices/|The University of Florida Sparse Matrix Collection]]**\\ The quadratic matrices can be interpreted as graphs; see the [[http://www2.research.att.com/~yifanhu/GALLERY/GRAPHS/|visualizations]] by Yifan Hu. * **Graph Drawing Contest graphs** at [[http://www.graphdrawing.de|graphdrawing.de]] * **[[http://staffweb.cms.gre.ac.uk/~c.walshaw/partition/|The Graph Partitioning Archive]]** by Chris Walshaw. * **[[http://www.dis.uniroma1.it/~challenge9/download.shtml|DIMACS Implementation Challenge: Shortest Paths]]**\\ Road networks of USA and Europe. * **[[http://www.cs.utexas.edu/users/dml/Software/graclus.html|Graclus Examples]]**\\ Sample data for the Graclus clustering software. * **[[http://www.cc.gatech.edu/dimacs10/downloads.shtml|DIMACS Implementation Challenge: Graph Partitioning and Graph Clustering]]**\\ A large number of different graphs, both synthetic and real-world ones, coming from different applications. * **[[http://snap.stanford.edu/index.html|SNAP: Stanford Network Analysis Project]]**\\ Includes the Stanford Large Network Dataset Collection, which contains various large networks like social, communication, citation, andcollaboration networks. ===== Graph Drawing Software ===== This list contains some selected Graph Drawing software systems with focus on actively maintained projects. ==== Scientific Projects ==== * **[[http://www.graphviz.org/|Graphviz]]** //by AT&T (Stephen North)// * **[[http://www.ogdf.net/|OGDF]]** //by Technische Universität Dortmund and University of Cologne (Petra Mutzel and Michael Jünger)//\\ OGDF is a C++ class library that contains many sophisticated data structures and algorithms for drawing graphs. * **[[http://pajek.imfm.si/doku.php|Pajek]]** //by Vladimir Batagelj and Andrej Mrvar//\\ A Windows program for the analysis and visualization of large networks. * **[[http://pigale.sourceforge.net/|Pigale]]** //by Hubert de Fraysseix and Patrice Ossana de Mendez//\\ Pigale is a graph editor and a C++ algorithm library concerned with planar graphs. * **[[http://tulip.labri.fr/TulipDrupal/|Tulip]]** //by David Auber, LaBRI, University of Bordeaux I//\\ Tulip is an information visualization framework dedicated to the analysis and visualization of relational data. ==== Commercial Software ==== * **[[http://www.aisee.com/|aiSee]]** //by AbsInt Angewandte Informatik GmbH// * **[[http://www.oreas.de/|GoVisual]]** //by oreas GmbH//\\ The GoVisual software library is a commercial Graph Drawing library available for various platforms (C++, COM, .NET, Java) * **[[http://www.tomsawyer.com/|Graph Layout Toolkit]]** //by Tom Sawyer Software//\\ Graph Layout Toolkit is a commercial Graph Drawing library available for various platforms (C++, .NET, Java) * **[[http://www-01.ibm.com/software/websphere/products/visualization/|ILOG Visualization]]** //by IBM//\\ Visualization and graph layout software for Java (JViews) and C++ (Views) * **[[http://www.jgraph.com/|JGraph and mxGraph]]**\\ Graph visualization components for AJAX, Java, Flash * **[[http://research.microsoft.com/en-us/projects/msagl/|Microsoft Automatic Graph Layout (MSAGL)]]** //by Microsoft// * **[[http://www.yworks.com/|yFiles]]** //by yWorks GmbH//\\ yFiles is a Java library of Graph Drawing algorithms. ==== Further Interesting Projects ==== * **[[http://www.informatik.uni-kiel.de/en/rtsys/kieler/|Kieler]]** //by University of Kiel// \\ An tntegrated environment for Layout for the Eclipse rich-client platform. * **[[http://scaffoldhunter.sourceforge.net/|Scaffold Hunter]]** //by Technische Universität Dortmund and Max-Planck Institute for Molecular Physiology Dortmund//\\ A Java-based software tool for the analysis of structure-related biochemical data. ===== People ===== * **[[http://www.dia.uniroma3.it/people/gdb/|Giuseppe di Battista]]**, Dipartimento di Informatica e Automazione, //Università degli Studi Roma Tre// * **[[http://www.inf.uni-konstanz.de/~brandes/|Ulrik Brandes]]**, Fachbereich Informatik & Informationswissenschaft, //Universität Konstanz// * **[[http://www.infosun.fmi.uni-passau.de/br/lehrstuhl/Mitarbeiter/Brandenburg/index.html|Franz J. Brandenburg]]**, Department of Mathematics and Computer Science, //University of Passau// * **[[http://www.mathematik.tu-dortmund.de/lsv/people/buchheim/|Christoph Buchheim]]**, Department of Mathematics, //University of Dortmund// * **[[staff/chimani|Markus Chimani]]**, Department of Computer Science, //Technische Universität Dortmund// * **[[http://www.diei.unipg.it/~didimo/|Walter Didimo]]**, Dipartimento Ingegneria Elettronica e dell’Informazione, //Università degli Studi di Perugia// * **[[http://www.cs.usyd.edu.au/~peter/|Peter Eades]]**, School of Information Technologies, //University of Sydney// * **[[http://www.ics.uci.edu/~eppstein/|David Eppstein]]**, Department of Computer Science, //University of California, Irvine// * **[[http://cams.ehess.fr/hf/|Hubert de Fraysseix]]**, //Centre d'Analyse et de Mathématique Sociale, Paris// * **[[http://www.research.att.com/people/Gansner_Emden_R/|Emden R. Gansner]]**, //AT&T Labs Research// * **[[http://www.ics.uci.edu/~goodrich/|Michael T. Goodrich]]**, Department of Computer Science, //University of California, Irvine// * **[[http://www.informatik.uni-koeln.de/ls_juenger/people/gronemann/|Martin Gronemann]]**, Department of Computer Science, University of Cologne * **[[staff/gutwenger|Carsten Gutwenger]]**, Department of Computer Science, //Technische Universität Dortmund// * **[[http://garryowen.csisdmz.ul.ie/~healyp/|Patrick Healy]]**, Computer Science Department, //University of Limerick// * **[[http://www.informatik.uni-koeln.de/ls_juenger/people/juenger/index.html|Michael Jünger]]**, Department of Computer Science, University of Cologne * **[[http://www-pr.informatik.uni-tuebingen.de/~mk/|Michael Kaufmann]]**, Wilhelm-Schickard-Institut für Informatik, //University of Tübingen// * **[[http://homepages.cwi.nl/~klau/|Gunnar W. Klau]]**, //CWI Life Sciences and NISB, Amsterdam// * **[[staff/klein|Karsten Klein]]**, Department of Computer Science, //Technische Universität Dortmund// * **[[http://www.cs.arizona.edu/people/kobourov/|Stephen G. Kobourov]]**, Department of Computer Science, //University of Arizona// * **[[http://kam.mff.cuni.cz/~honza/|Jan Kratochvil]]**, //Charles University, Prague // * **[[http://www.diei.unipg.it/~liotta/|Giuseppe Liotta]]**, Dipartimento Ingegneria Elettronica e dell’Informazione, //Università degli Studi di Perugia// * **[[staff/mutzel|Petra Mutzel]]**, Department of Computer Science, //Technische Universität Dortmund// * **[[http://www.nishizeki.ecei.tohoku.ac.jp/nszk/nishi/nishi.html|Takao Nishizeki]]**, //Tohoku University// * **[[http://www.research.att.com/people/North_Stephen_C|Stephen C. North]]**, //AT&T Labs Research// * **[[http://www.cims.nyu.edu/~pach/|János Pach]]**, Courant Institute of Mathematical Sciences, //New York University// * **[[http://www.cs.brown.edu/people/rt/|Roberto Tamassia]]**, Department of Computer Science, //Brown University, Providence, RI// * **[[http://www.ics.forth.gr/bmi/tollis/|Ioannis G. Tollis]]**, Biomedical Informatics Laboratory, //FORTH-ICS// * **[[http://i11www.iti.uni-karlsruhe.de/en/members/Dorothea_Wagner/index|Dorothea Wagner]]**, Institute for Theoretical Informatics, //Karlsruhe Institute of Technology// * **[[http://www.cmis.csiro.au/Rene.Weiskircher/|René Weiskircher]]**, //CSIRO Mathematical and Information Sciences, Melbourne// * **[[http://www.cs.mcgill.ca/~sue/|Sue Whitesides]]**, School of Computer Science, //McGill University// * **[[staff/wong|Hoi-Ming Wong]]**, Department of Computer Science, //Technische Universität Dortmund// * **[[staff/zey|Bernd Zey]]**, Department of Computer Science, //Technische Universität Dortmund// ===== Links ===== Further interesting resources are available at the following web sites: * **[[http://www.graphdrawing.de|Graph Drawing Contest]]** //by Georg Sander//\\ Various information about current and past GD contests. See also the contest's [[https://plus.google.com/100372006947364662364|Google+ page]]. * **[[http://www.graphdrawing.org/|graphDrawing.org]]** //by Ulrik Brandes// * **[[http://gdea.informatik.uni-koeln.de/|Graph Drawing E-Print Archive (GDEA)]]** //by Michael Belling//\\ An electronic repository and archive for research material on graph drawing. * **[[http://gvsr.polytech.univ-nantes.fr/GVSR/|Graph Visualization Software References]]** //by Bruno Pinaud and Pascale Kuntz//\\ A directory for Graph Drawing software.