WowAce

QR Code builder library

Crowd-control monitor

Assist you with faction transfers letting you know which mounts, spells, etc you have and what they will be swapped to.

SurgeonGeneral Listen CLient

A library to help with localization of Archaeology artifacts

Reverse Engineering will drill down and search your tradeskills for their elements

Small addon to copy chat lines.

Add TomTom Waypoints for Flight Masters in classic

Interface-central mount management

Displays a grid of guild ranks versus permissions.

Tracks and announces interrupts (eg. Hit/Miss/Immune) and is also able to track and report "wasted" interrupts (those which d...

BiGOpt

Mute error messages of N next spell cast.

Raid level alternative player power warning (Atramedes, Cho'gall, Lord Rhyolith)

Lists Pots and Herbs you got on all chars and allows you to specify color coding

FuBar_WintergraspFu

Allows combined aura detection. motw + gotw, all 4 mage int buffs, etc. in one status.

RaidSpy

Adds pipes which can control arbitary other statuses (like toggle status on key or "in combat"-state).

Praise the Sun! \[T]/