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	The Ridiculously Enhanced Pi Page - http://www.exploratorium.edu/pi/ Information on links for Pi Day.
	Ask Dr. Math: About Pi - http://mathforum.org/dr.math/faq/faq.pi.html Explains what the constant is and a brief history. Includes resource links.
	The Joy of Pi - http://www.joyofpi.com/ Book, digits, links, facts, and quote.
	Buffon's Needle - http://www.mste.uiuc.edu/reese/buffon/buffon.html An analysis of its relation to Pi and a simulation by George Reese.
	Earth Mysteries : Notes on Pi - http://witcombe.sbc.edu/earthmysteries/EMPi.html An introduction to the number Pi and its history.

	http://www.eveandersson.com/pi/ - http://www.eveandersson.com/pi/ Fun activities, a Pi trivia game and a Trainer for digit memorization. Pi poetry, artwork, and photography, calculations, digits and book reviews.
	A Common Book of Pi - http://personal.bgsu.edu/~carother/pi/Pi1.html Includes a brief history, a page with different formulas and a list of references.
	The Pi Pages - http://oldweb.cecm.sfu.ca/pi/pi.html Information on Pi, its history, its future, and the people involved in its calculations.
	Pi World Ranking List - http://www.pi-world-ranking-list.com/ Every sport has its championship. Every sport has its world ranking list. For many who like to memorize numbers, PI is the ultimate number, and it makes sense to create a list for people to get in touch and learn where they stand in the world of memorizers.
	Elias' Pi Page - http://www.befria.nu/elias/pi/ Includes Pi in the Binary number system, Pi as a sound file and Pi shown in different images.

	Ask Dr. Math - Pi - http://mathforum.org/library/drmath/sets/mid_pi.html Dr Math answers over 60 questions submitted by people about pi including questions on the Bible's relationship to it and its relationship to trigonometry.
	The Constant Pi - http://numbers.computation.free.fr/Constants/Pi/pi.html History, formulae, algorithms, programs, records of computation, and references.
	Ancient Pi: Knowers of the Universe - http://www.earthmatrix.com/ancient/pi.htm The concept of pi refers to the constant ratio of the diameter:circumference of any circle; irrespective of the number of degrees contained within that circle. An article in the "Science in Ancient Artwork"-Series by Charles William Johnson.
	The Pi Trivia Game - http://www.eveandersson.com/trivia/ History, math, and physics questions.
	Pi, Pi, Mathematical Pi - http://www.vvc.edu/ph/TonerS/mathpi.html Parody of the song "Bye Bye Miss American Pie" elaborating on the history of pi.

	A Slice of Pi Home Page - http://www.geom.uiuc.edu/~huberty/math5337/groupe/welcome.html Features an historic overview of the discovery and estimate methods of pi. formula expressions, and the first 100,000 digits. Some pages use a Geometer's Sketchpad program.
	Pi Memorama - http://www.ac.wwu.edu/~mnaylor/pi.html Includes a program that teaches Pi for the Mac, a page on why people learn to recite Pi and pages on how to memorise Pi.
	Pi Approximation Day - http://www.rebas.se/humor/piapprox.shtml 22/7 - that is, July 22. For the past few years, people at Chalmers University have celebrated it.
	Pi Through the Ages - http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Pi_through_the_ages.html History.
	Dale's Pi Page - http://www.geocities.com/SiliconValley/Pines/5945/ Includes history of Pi, songs and jokes, poems, news and the first 1,000,000 digits.

	The Magic Piworld - http://www.piworld.de/piworld/mpw_home.htm Provides generated pictures and personal signs out of digits of Pi. Also a Picture Gallery, PiSign, PiPhonie.
	http://www.geocities.com/ResearchTriangle/Facility/4118/misc/pi.html - http://www.geocities.com/ResearchTriangle/Facility/4118/misc/pi.html Extracting the digits of pi from the SlOka
	A Tribute to Pi - http://www.acc.umu.se/~olletg/pi/trib.htm Club and information.
	Pi Patterns - http://www.antigravitypress.com/Math/pi/ Images and illustrations created by using the digits of the circle constant.
	Your Piece of the Pi - http://library.thinkquest.org/C0110195 This site describes pi's history, characteristics, and application. It also includes a distributed computing application for finding a large number of digits.

	Harry Smith's Brief History of Pi Calculations - http://www.geocities.com/hjsmithh/Pi/Records.html Brief history of Pi calculations from the ancient times to present day.
	Indiana Pi Bill - http://tafkac.org/legal/indiana_pi_bill.html Bill proposing new value of pi.
	Calculating Pi - http://sourceforge.net/projects/projectpi/ An open source endeavor for the calculation of this constant. Describes the project, the implemented algorithms for calculatinon and software downloads.
	Pi 3.1416 - http://www.freewebs.com/pi3point1416/ Mathematics as the language of nature.
	A New Approach to the Universal Constant "pi" - http://alkyone.com/mak-pi-gr/en/ A text that tries to prove that pi is 3.1416 exactly.

	The Pi Song - http://www.physics.uq.edu.au/people/gilmore/humour/the-pi-song/ Written by Joel Gilmore. (Sung to the tune of Supercalifragilisticexpialidocious.)
	Lucy Scale Developments - http://www.harmonics.com/lucy/ltindex.html Pitch, Pi, and other musical paradoxes.
	How Stuff Works: Pi - http://www.howstuffworks.com/pi.htm Animated graphic helps to explain Pi and the different ways of calculating Pi, with some related links.
	Fun With Pi - http://lists.topica.com/lists/funwithpi@igc.topica.com/ A Topica email list. Archives readable by anyone.
	Land of Pi - http://www.geocities.com/landofpi/ Pi digits, random links, and some downloads.

	Pi-Dye : Pi and Math T-Shirts and Gifts - http://www.pidye.com/thestorezone/index.php Pi and math gifts, t-shirts, clocks, and mugs. Includes some pi news.
	Three141, a BBP Ruby implementation and a portal about Pi - http://www.314159265358979323846264338327950288419716939937510.net A Ruby implementation of BBP (Bailey-Borwein-Plouffe formula) and a portal about the Pi. The BBP formula calculates the nth digit of pi without having to retain all the previous digits.
	History and Philosophy of Pi - http://briantaylor.com/Pi.htm Probably no symbol of infinity in mathematics has evoked as much mystery, romanticism, misconception and human interest as the number and Greek letter of Pi. Interesting facts and trivia about Pi.

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