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• International Olympiad in Informatics   - Annual computing-science competition for talented senior high-school students. Contains links to the homepages for every year and status information about the organisation of the event.

• All Ireland Schools Programming Competition - An annual computer programming competition held at Dublin City University, sponsored by DCU and IBM Ireland, for pre-university programmers.
• American Computer Science League - ACSL organizes computer science contests and computer programming contests for junior and senior high school students.
• Annual High School Programming Competition - The Annual High School Programming Competition hosted each spring for Nova Scotia high school students by Saint Mary's University.
• Australian Mathematics Trust - A list of links to pages about IOI.
• Bi-Lo High School Programming Contest - A high school programming contest held at Furman university in South Carolina.
• British Informatics Olympiad - Annual programming competition for pre-university students in England, Scotland and Wales.
• CEOI 2002 - Pictures for the Central European Olympiads in Informatics.
• HP CodeWars - An annual programming competition for high school students in the Houston area and throughout Texas.
• International Olympiad in Informatics - IOI - The pages list where the competitions are held and also Israeli Medalists.
• IOI - International Olympics in Informatics - An official site describing the history of the contest, official regulations, future locations and members in many countries of the world.
• IOI-list - An information page for the mailing-list ioi-list with the possibility to subscribe online.
• UCT prepares for international informatics olympiad - A news article from the University of Cape Town about preparations for IOI 1997.
• University of Maryland High School Programming Contest - A high school programming contest for students in the Washington DC area.
• University of Scranton High School Programming Contest - Participants are high school students, mainly from schools in Northeastern Pennsylvania. Sponsored by the University of Scranton.
• USA Computing Olympiad (USACO) - USACO supports pre-college computing around the world through computer programming competitions and training materials. Site contains details about current and previous competitions, alumni, training, and registration.
• USACO Training Program Gateway - Training pages for C++/Pascal programmers who intend to particapate at IOI.
• USM High School Computer Programming Contest - University of Southern Mississippi High School Computer Programming Contest.

• IOI 2002 in South Korea - 14th International Olympiad in Informatics. (June 1, 2002)
• IOI 2001 in Finland - 13th International Olympiad In Informatics in Tampere. (June 1, 2001)
• IOI 2000 in China - 12th International Olympiad In Informatics in Bejing. (June 1, 2000)
• IOI'98 in Portugal - The 10th International Olympiad in Informatics in Setúbal. (June 1, 1998)
• IOI 1995 in the Netherlands - 7th International Olympiad in Informatics 1995 (June 1, 1995)
• IOI 1993 in Argentina - 5th International Olympiad In Informatics in Mendoza. (June 1, 1993)