WowAce

End of combat reporting for feedback on how your cast time was spent or wasted.

A simple visual combat log with spell/skill icons for Classic WoW

FuBar_KungFu

SimpleChatMods

MeleeBuffs

DrumCoord

Makes most default frames movable (mailbox, achievements window etc.)

Experience is an addon that helps you evaluate another player's dungeon experience.

FuBar_HealBotFu

Spell interrupt aid and announcement addon.

A library to provide coloring tools.

LDB data source for Instance Tracking

Adds usable and equipable filters to Baggins

TalentWhisper

Reputation Statistics - Gained, Needed, Rep/Hr, Session Time, etc.

Makes clicking the shields during the Atramedes encounter spammable

FuBar_CustomMenuFu

FuBar_WaypointsFu

Destruction Warlock priority module for clcInfo -- Maighurl

Responds to DBM version checks, so that you don't have to.