External links

International Mathematical Olympiads
Official IMO site: http://www.imo-official.org
IMO 2006, Slovenia: http://http://imo2006.dmfa.si//
IMO 2007, Vietnam: http://www.imo2007.edu.vn/
IMO 2009, Germany: http://www.imo2009.de/
Math competitions
Spanish Mathematical Olympiad: http://platea.pntic.mec.es/~csanchez/ olimmain.htm
More information on the IMO: http://imo.math.ca/
Science olympiads (math): http://olympiads.win.tue.nl/imo/
IMO Compendium: http://www.imo.org.yu/
Internet resources
MathLinks: http://www.mathlinks.ro/
Art of Problem Solving: http://www.artofproblemsolving.com/
Other
IMO scores statistics: http://www.srcf.ucam.org/~jsm28/imo-scores/
DIC picture gallery: http://www.dic.si/Galerija/thumbnails.php?album=34