Topaz Chat 6.3.1.71 - TopazChat is a program for the PC that enables chat over B attle.net without having to run a game.
PC - http://members.xoom.com/topazchat/

Battle.Net Buddy - This program allows users to locate friends on Battle.net
PC - http://www.sclegacy.com/bnetbuddy/

Winters Battle.net Bot - A bot designed to moderate Battle.net channels
PC - http://www.sclegacy.com/wintersbot/

Java Battle.net Bot - A Battle.net channel moderator bot designed to run on any system supporting Java
http://www.battlegrounds.com/javabot/

Cinematic Teaser
PC - http://www.blizzard.com/diablo2/teaser.htm

Gameplay Preview
PC - http://www.blizzard.com/diablo2/gameplay.htm

Fan Site Chat - August 12, 1999
http://www.battle.net/files/d20812.shtml

Fan Site Chat - June 17, 1999
http://www.battle.net/files/d20617.shtml

Fan Site Chat - April 7, 1999
http://www.battle.net/files/d20407.shtml

Fan Site Chat - February 4, 1999
http://www.battle.net/files/d20204.shtml

Gamespot Diablo II Designer Diary
http://www.gamespot.com/features/diablo2diary_dd/

Warcraft II DOS/Mac Demo
PC - http://www.blizzard.com/warbc/war2demo-pc.shtml
Mac - http://www.blizzard.com/warbc/war2demo-pc.shtml

KPUDs - A great collection of Warcraft II maps
http://w3.one.net/~billw/kpud

"I'm a Medival Man" Bonus Track MP3 - Requires a MP3 Player
http://ftp.blizzard.com/pub/war2/SOUNDS/DiscoWC.zip (2.0 MB)

Warcraft II MP3 - Requires a MP3 Player
http://www.mp3.com/artists/3/noize_incorporated.html

Warcraft II Authorized Maps Site
http://www.warcraft.org/resources/maps/

Cinematic Teaser
PC - http://www.blizzard.com/broodwar/teaser.shtml

Brood War Intro Music - Requires a MP3 Player
http://ftp.blizzard.com/pub/starcraft/SOUNDS/bwintro.zip [2.0 MB]

Radio Free Zerg - Requires a MP3 Player
http://ftp.blizzard.com/pub/starcraft/SOUNDS/RadioFreeZerg.zip [2.85 MB]

Starcraft & Brood War Map of the Week
http://www.battle.net/scc/maps.shtml

Brood War Sound Utility - For Starcraft: Brood War Only
This sound utility will allow you to change the sound effects in Starcraft: Brood War.
Note: requires 100 MB of available hard disk space.
PC - http://ftp.blizzard.com/pub/broodwar/SOUNDS/BWSoundUtility.zip

Starcraft Brood War 1.07 Patch
PC - http://www.blizzard.com/support/starcraft/misc/patch.shtml

Starcraft Authorized Maps Site
http://www.starcraft.org/scums/maps.shtml

Starcraft Demo
PC - http://www.blizzard.com/star/scdemo.shtml
Mac - http://www.blizzard.com/star/macscdemo.shtml

Starcraft & Brood War Map of the Week
http://www.battle.net/scc/maps.shtml

Starcraft Sound Utility - For Regular Starcraft Only
This sound utility will allow you to change the sound effects in Starcraft.
Note: requires 80 MB of available hard disk space.
PC - http://ftp.blizzard.com/pub/starcraft/SOUNDS/SCSoundUtility.zip [86 KB]

Starcraft 1.07 Patch
PC - http://www.blizzard.com/support/starcraft/misc/patch.shtml

Starcraft Techno Mp3s - Requires a MP3 Player
http://www.mp3.com/artists/8/daknit_bard_of_justice.html
http://www.mp3.com/artists/5/plauge_xl.html

Starcraft Authorized Maps Site
http://www.starcraft.org/scums/maps.shtml

Diablo Demo
PC - http://www.blizzard.com/diablo/diablosw.shtml
Mac - http://www.blizzard.com/diablo/macdiablosw.shtml

Diablo 1.07 Patch
PC - http://www.blizzard.com/support/diablo/misc/patch.shtml
Mac - http://ftp.blizzard.com/Pub/diablo/Mac/Diablo107sit.hqx

Winamp - MP3 Player
PC - http://www.winamp.com

Macamp - MP3 Player
Mac - www.macamp.org

ACDSee - Image (Screenshot) Viewer
PC - http://www.acdsystems.com/pages/acdsee32.htm