WowAce

TextSpy

A popup menu containing user-programmable scripts.

Track any items you want in a tooltip

Displays information about the current zone on the World Map for WoW Classic Era

Mark My Words

Ingela's Rapture is a lightweight and highly configurable addon that gives you a cooldown bar for the internal cooldown of Ra...

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

Tracks Black Market Auction House auctions.

Shows learned recipes of all characters.

Handles the assignment, coordination, and announcement of many parts of the Lich King encounter in Icecrown Citadel.

Shows your standings with the factions.

An extra set of 11x3 buttons, integrated into the default action bar.

Shows the minimum durability of equipped items on the stats frame.

Ironi's Encounter Event Tracker

Calculates optimal reforging for given weights/caps.

Stable

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

Meeuuuh

Calendar improvements

Add-on that shows which battle pets can be farmed this week