Science News Online: Pi à la Mode
- An article describing a potential link between two disparate mathematical fields-number theory and chaotic dynamics-that could lead to a proof that every digit of pi occurs with the same frequency.
- http://www.sciencenews.org/20010901/bob9.asp

Is Pi normal?
- An article by Stan Wagon about the idea of normality, first introduced by E. Borel in 1909, is an attempt to formalize the notion of a real number being random.
- http://pi314.at/math/normal.html

Bailey and Crandall's article on the random character of constants.
- An article on the random character of the fundamental constants such as pi, e and square-root of 2, by David Bailey and Richard Crandall (Experimental Mathematics, 2001)
- http://crd.lbl.gov/~dhbailey/dhbpapers/baicran.pdf

Pi Memorize
- A free Windows application used to help memorize the number Pi to 10000 digits.
- http://brianbondy.com/other/pi.aspx

Ramanujan, Modular Equations, and Approximations to Pi or How to compute One Billion Digits of Pi
- Explains and compares several formulas for evaluating this large number of numerical places for pi. Includes complete list of digits.
- http://www.cecm.sfu.ca/organics/papers/borwein/paper/html/paper.html

Project Gutenberg Pi Listing
- 1.25 million digits of pi available as E-Text from Project Gutenberg.
- ftp://ibiblio.unc.edu/pub/docs/books/gutenberg/etext93/pimil10.txt

The 100-Club
- Club for people who can memorize 100 or more digits of Pi.
- http://www.acc.umu.se/~olletg/pi/club_100.html

The 2 Club
- Club for people that can memorize more than 2 digits of Pi.
- http://www.rebas.se/humor/piclub.shtml

Pi
- Immediately displays the number Pi to over 10 million digits.
- http://3.141592653589793238462643383279502884197169399375105820974944592.jp/

Are the Digits of Pi Random?
- An article by Paul Preuss about new research outcome at the Berkeley Lab.
- http://www.lbl.gov/Science-Articles/Archive/pi-random.html

Search for strings within Pi
- Searches for any string of digits (up to 120 of them) in the first 100 million digits of Pi.
- http://www.angio.net/pi/piquery.html

Search within Pi
- Search in the first four billion binary digits of Pi for a string and links to further information about Pi.
- http://pi.nersc.gov/

Am I in Pi
- Determines where your birthday first occurs in PI. Checks the first 1,254,543 digits of PI.
- http://www.facade.com/legacy/amiinpi/

Beauty
- A sort of poem with the digits of Pi, spelled out with the words in many different languages.
- http://www.ugcs.caltech.edu/~eveander/beauty.html

Search Pi to 40 Million Digits
- Find strings of digits in the first 50,000,000 digits of Pi.
- http://www.angio.net/pi/piquery