The Mersenne Prime Homepage  
   Notes and links by Simon Rubinstein-Salzedo.
   http://www.albanyconsort.com/mersenne/

Will Edgington's Mersenne Page  
   Downloadable factor data, newsletter archives, and proofs of theorems relating to the search for Mersenne primes.
   http://www.garlic.com/~wedgingt/mersenne.html

Mersenne Prime Digits  
   Landon Curt Noll lists the decimal, English, and American expansions of all the known Mersenne primes.
   http://www.isthe.com/chongo/tech/math/prime/mersenne.html

Marin Mersenne  
   Biography of the Minim friar and his contributions to number theory. Includes references, pictures, and cross-references to topics.
   http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Mersenne.html

Mersenne and Fermat Primes Field  
   Henri Lifchitz's single general form contains the main remarkable numbers of number theory.
   http://ourworld.compuserve.com/homepages/hlifchitz/Henri/us/MersFermus.htm

Ars Technica Team Prime Rib  
   A distributed computing team dedicated to finding Mersenne prime numbers.
   http://www.teamprimerib.com/

mersenneforum.org  
   A forum about prime numbers and computerized searches for more of them. Includes discussions of software and hardware issues encountered by searchers.
   http://www.mersenneforum.org/

Distributed Computing Strikes Gold  
   An article about the newly found M_13466917 at CNET.com.
   http://news.com.com/2100-1001-276972.html?legacy=cnet

Internet PrimeNet Server  
   PrimeNet is a distributed computing project for the Great Internet Mersenne Prime Search, co-ordinating the assignment of work and collection of results.
   http://www.mersenne.org/ips/

Mersenne Prime Mailing List  
   Unmoderated list for communication between those interested in all aspects of Mersenne Primes. Sginup and access to archives.
   http://www.ndatech.com/mersenne/signup.htm

Mersenne Primes: History, Theorems, and Lists  
   A comprehensive summary of Mersenne prime matters, from their earliest history to the modern test implementations by computer.
   http://www.utm.edu/research/primes/mersenne/