1. The Four Color Theorem
Computer aided proof of the four color theorem by Neil Robertson, Daniel P. Sanders, Paul Seymour and Robin Thomas.
http://www.math.gatech.edu/~thomas/FC/fourcolor.html - 05-02-2002
Rating: [7.00] Votes: 
7. Cubic Cages
List of known cubic cages of small girth maintained by Gordon Royle.
http://www.cs.uwa.edu.au:80/~gordon/cages/index.html - 04-01-2004
Rating: [5.00] Votes: