ACM ICPC Problem Set Archive: Problem sets from past ACM programming contests. Most of them are from regional contests and some from the finals.
Cilk Pousse: Home page of the first prize winners of the ICFP Functional Programming Contest from MIT Laboratory for Computer Sciences.
Computer Science at Sandusky High School: Home page of a high school that has been successful in local ACM style programming contests.
CUHK ACM Programming Team: Home page of City University of Hong Kong, the first place winners in the ACM International Collegiate Programming Contest (ACM/ICPC) Asia Regional.
Dats' Digital Domain: A simple java contest site with a forum to chatter about it. Monthly/Bi-monthly contests.
David Neto's Programming Contest Page: Contestant and coach of prior programming contest teams in ACM Programming Contest regionals.
Ed's Programming Contest Problem Archive: Home page with problem archives of past ACM Programming Contests.
Gaddipati, Rama Krishna: Resume. Solutions for ACM ICPC problems by Rama Krishna Gaddipati. Also solutions for first and second year students of BITS, Pilani who are doing their Computer Programming-I [CP-I] and Computer Programming-II [CP-II].
Interactive Proof of Pythogoras' Theorem: Home page of the grand prize winner in Sun Microsystem's Java programming contest in 1995.
Olympiad in Informatics: Personal homepage of Zeyuan Zhu and his friends. Programming resources (problems and solutions).
Producing a Programming Contest Problem Set: Home page of Tom Verhoeff providing guidelines for producing an "ACM style" programming contest problem set.
Programming Games: An large list of links to popular programming games and contests.
Selected ACM ICPC Problem Solutions: Solutions to some problems which appear in ACM ICPCs and aptitude tests. Solutions by Rama Krishna Gaddipati.
Tom's Contests Page: Schedule and links to programming contests.
UCI Teams for the ACM Programming Contest: Home page of the University of California, Irvine's for the ACM Programming Contest.