Wikipedia Links

Quite a lot of Wikipedia articles that provide a decent overall idea of some ideas, and, as always on Wikipedia, have a huge amount of citations. Wikipedia's renowned for being inaccurate, but I'm only using these pages to get a general understanding of concepts. If I wanted to investigate specific information stated, I would follow the citation for that piece of information, and could evaluate the trustworthiness of that site.

General chess stuff:

http://en.wikipedia.org/wiki/Computer_chess 

http://en.wikipedia.org/wiki/Chess_endgame

Algorithms:

http://en.wikipedia.org/wiki/Alpha-beta_pruning 

http://en.wikipedia.org/wiki/Game_tree

http://en.wikipedia.org/wiki/And-or_tree 

http://en.wikipedia.org/wiki/Minimax

http://en.wikipedia.org/wiki/Negascout

http://en.wikipedia.org/wiki/Retrograde_analysis

http://en.wikipedia.org/wiki/Killer_heuristic

http://en.wikipedia.org/wiki/Iterative_deepening_depth-first_search

http://en.wikipedia.org/wiki/Late_Move_Reductions

http://en.wikipedia.org/wiki/Null-move_heuristic

http://en.wikipedia.org/wiki/Quiescence_search

http://en.wikipedia.org/wiki/Evaluation_function

Notation:

http://en.wikipedia.org/wiki/Portable_Game_Notation

http://en.wikipedia.org/wiki/Algebraic_chess_notation

http://en.wikipedia.org/wiki/Forsyth-Edwards_Notation

Board storage:

http://en.wikipedia.org/wiki/Bitboard 

http://en.wikipedia.org/wiki/Huffman_coding 

http://en.wikipedia.org/wiki/Board_representation_(chess)