A survey of online databases and game collections (including software tools [freeware and shareware]).

• 365Chess.com

• Bookup (Encyclopedia of Chess Openings) by Mike Leahy

• Chess Assistant & Databases by Convekta Ltd

• ChessBase - ChessBase Light 2009 - Saving Games in PGN

• ChessDB by Dr. David Kirkby

• ChessGames.com - free registration is required

• ChessLab by GameColony.com

• Chess Mix Pro by Ventzislav and Hristo Inkiov

• ChessOk Databases by Convekta Ltd

• ChessPad (PGN Database - Position Search Database) by WML Software

• Chess-Rsults.com - a collection of tournaments worldwide

• ChessShell (Game / Position Database) by Ejner Borgbjerg

• Chess Tempo Chess Database

• Exachess - Exachess Lite (for Macintosh) by Howard Exner

• International Correspondence Chess Federation

• José Chess Database by Peter Schäfer

• KingBase

• Lars Balzer´s Chess Games Links - a huge collection

• Messaggero Scacchi from the years 2000-2009 (Italian)

• MillBase 2017 by Ed Schroder

• MillBase in Scid format (Update)

• Opening Master.com mainly by Alexander Horvath

• PGN-Mentor Files (Events - Openings - Players) by 64 Squares

• Schachdatenbank by Karl-Heinz Milaster (German)

• Scid by Shane Hudson and Pascal Georges

• Scidb by Gregor Cramer

• Scid vs. PC by Steven Atkinson

• The Week in Chess Magazine (digest for download, chess news and games) by Mark Crowther