Counter-Strike

Counter Strike 1.6

Admin Mod - http://www.adminmod.org/
Advanced Team Attack Control (ATAC) - http://www.amxmodx.org/forums/viewtopic.php?t=443
AMXMod - http://amxmod.net/
AMXModX - http://www.amxmodx.org/
Cheating-Death - http://www.unitedadmins.com/cdeath.php
Chicken Mod - http://djeyl.net/chickenmod.php
Clan Mod - http://www.unitedadmins.com/clanmod.php
HLGuard - http://www.thezproject.org/projects.php?pid=1
Logd - http://logd.sourceforge.net/
LogMod - http://www.hlsw.net/index.php?url=logmod_info
MetaMod - http://metamod.org/
Ptahhotep's Team Balancer - http://www.amxmodx.org/forums/viewtopic.php?t=2814
SoundCheck - http://www.tng-clan.de/index.php?page=tools
StatsMe - http://www.unitedadmins.com/statsme.php
SuperHero - http://shero.rocks-hideout.com/
Ultimate Warcraft 3 - http://www.mudconnect.com/uwc3/servers.html
Warcraft 3 Expansion - http://wc3mods.net/war3x/
Warcraft3 - http://wc3mods.net/forums/index.php?c=6
Warcraft3:FT - http://wc3mods.net/war3ft/
WebMod - http://djeyl.net/w.php

Counter-Strike Source

Mani-admin-plugin - http://www.mani-admin-plugin.com/forums/portal.php
Autoban - http://www.thezproject.org/ (including HLGuard)
Beetlesmod - http://www.beetlesmod.com/
More plugins - http://www.sourcemod.net/forums/