I just love to read good articles about solving AI challenges.
Two interesting articles in sequel on developing Poker AI, even if you don't have gambling aspirations, you can still harvest some great horizon opening ideas.
Part I
http://gamecareerguide.com/features/896/poker_ai_a_starting_.php
Part II
http://www.gamasutra.com/view/feature/6154/aces_high_numerical_techniques_in_.php
