International Math Competition for University Students
- Information on past and future competitions, contest results and problems. 11th meeting: Skopje, Macedonia; 23--29 July 2004.
- http://www.imc-math.org.uk/

IMO 2006
- 47th International Mathematical Olympiad, July 6-18, Ljubljana, Slovenia. Page includes program, regulations and travel arrangements.
- http://imo2006.dmfa.si/

Countries with Olympiad Sites
- Links to Mathematical Olympiad Websites.
- http://www.iisc.ernet.in/mocell/LINKS/countries.html

William Lowell Putnam Competition
- An annual college math contest administered by The Mathematical Association of America.
- http://math.scu.edu/putnam/

IMO 2001
- 42nd International Mathematical Olympiad, July 1-14, Washington DC, USA. Contains information and official results.
- http://imo.wolfram.com/

Rocket City Math League
- International mail-in competition for avid students in mathematics.
- http://www.rocketcitymath.org/

Singapore International Mathematical Olympiad
- Site provides information about the SIMO Community, the training and also charts Singapore's participation in the competition since 1988.
- http://home1.pacific.net.sg/~slwee/simo/

IMO 2004
- 45th International Mathematical Olympiad, July 4-18, Athens, Greece.
- http://www.imo2004.gr/

Vojtech Jarnik Mathematical Competition
- Held at the University of Ostrava every year in March or April, open to university students. Site includes contest rules, results, and past problems and solutions.
- http://prf.osu.cz/kma/dokumenty/vjaimc/vjaimc.html

Mental Calculation World Cup 2004
- Mental Calculation World Cup, an international competition for mental calculators
- http://www.recordholders.org/en/events/worldcup04/

Math Olympiad for Elementary Schools
- Contest open to all students grade 8 to 4. Offers resources for students and school mathematics clubs.
- http://www.moems.org/

Australian Primary Schools Mathematical Olympiads Inc.
- Open to primary schools in Australia, New Zealand and surrounding countries.
- http://www.apsmo.info/

IMO 2003
- 44th International Mathematical Olympiad, 7-20 July, Tokyo, Japan. Contains results, photos, problems and solutions.
- http://www.imo2003.com/

IMO and National Olympiads
- Information on past and future competitions, competing countries, exam problems and related materials.
- http://imo.math.ca/

IMO and Other Competitions
- Past International Mathematical Olympiads and links to web sites related to various regional and national math competitions
- http://olympiads.win.tue.nl/imo/

IMO Network
- Mailing lists for participants of the International Mathematical Olympiads.
- http://imonet.online.fr/

IMO 2000
- 41st International Mathematical Olympiad, July 13-25, Taejon, South Korea. Contains problems and results.
- http://imo.math.ca/IMO2000/

IMO 1999
- 40th International Mathematics Olympiad, July 10-22, Bucharest, Romania. Contains problems and results.
- http://imo.math.ca/IMO99/

IMO 1997
- 38th International Mathematical Olympiad, Mar del Plata, Argentina. Contains problems, solutions, results.
- http://www.oma.org.ar/imo97/index_en.html

IMO 1996
- 37th International Mathematical Olympiad, Mumbai, India. Contains results, problems and solutions.
- http://imo.math.ca/IMO96/

IMO 1995
- 36th International Mathematical Olympiad, July 13-25, Toronto, Canada. Contains results and picture gallery.
- http://imo.math.ca/IMO95/