The official site for the International Junior Science Olympiad (IJSO).
The IOI is the most prestigious computer science competition in the world for secondary school students. UNESCO and IFIP are patrons.
The official site for the International Linguistics Olympiad (IOL).
The International Medicine Olympiad (IMDO) is an international competition in medicine-related fields of biology for high school students.
The official site for the International Junior Science Olympiad (IJSO).
The IOI is the most prestigious computer science competition in the world for secondary school students. UNESCO and IFIP are patrons.
The official site for the International Linguistics Olympiad (IOL).
FACTSlides is an endless stream of amazing facts presented as colorful and animated slides.
Expedition Portal is a community of adventure travelers, where the primary means of exploration is by 4wd and motorcycle.
Free online tutorials and reference manuals with examples for almost everything.