Reviews for Chess Programmers and Tournament Directors

Chess Database
http://www.chessgameslinks.lars-balzer.info/

Engines

http://www.arasanchess.org/
http://frayn.net/beowulf/
http://arctrix.com/nas/chess/fruit/
http://www.glaurungchess.com/
http://scid.sourceforge.net/

http://alpha.uhasselt.be/Research/Algebra/Toga/polyglot-release/
http://www.stockfishchess.com/faq/
http://www.triplehappy.com/

http://www.horizonchess.com/pmwiki.php?n=Main.Programming