WowAce

Broker2FuBar

A customizable casting bar replacement for TBC Classic & Classic WoW

Constructs a SimC export string for an item without equipping it

Creates new chats with guild channel functionality

Capital Cities NPC Browser

Welfare Epics

Seraphim Raid Tracker

Assistance for the Ra-den encounter. (Unstable Vita order, ball kill order)

ItemRackFu

Filters AFK and DND messages after you've seen them once.

A 'channeling spell'-tracking addon for Affliction Warlocks. Drain Soul, Drain Life/Harvest Life and Malefic Grasp.

DataBroker display using minimap buttons.

Enhances the StackSplitFrame with numbered Buttons, a '1-Click Mode' and a 'Auto Split Mode'.

Quest helping: fetching items to use, that sort of thing.

Adds a button to the quest completion interface which allows you to auto equips selected quest Item after completion

Lag tolerance module for Broker displays.

TradeBar

Allows for easy congratulating when someone earns an achievement.

Enable/Disable addons for your character in game

Automatically sells low quality gray items and selected white items to the vendor.