List of Programming Competitions/Contests

Google Code Jam

  • annual competition

ACM ICPC

  • annual competition

ICF PC

  • annual competition

USA Computing Olympiad

  • annual competition
  • community
  • training

Facebook Puzzles

  • competition

SPOJ

  • competition

Hack-Fit

  • competition
  • hackathon

Kaggle

  • predictive modeling competitions
  • community

Hacker Rank

  • competition
  • community
  • training

Code Chef

  • competition
  • community
  • training

Code Forces

  • competition
  • community
  • training

Project Euler

  • tests

Initial Round

  • community
  • training

Online Judge

  • training

Know of another one? Let me know