WowAce

An experience bar for classic that shows the entire process from 1-60

When pressing Enter to type into chat, only the default channels are remembered (stickied), not who you last whispered. This ...

Saves your watched quests and achivement between sessions

RatKiller

AceGUI

zimCoords

Macroception allows you to call macros from within another macro.

Closes chat when the player is instead trying to move

Displays guild members on the world and mini map

BT_SW

Serenity

Buff/Debuff Library

Announce who should stay during Hour of Twilight in Ultraxion Heroic Encounter.

A library for sending addon messages over the battle.net chat system

Yes, I really want to destroy that item, stop asking.

BigWigs_BrutAssist

oUF_DArc

Library for tracking auras

VendorSearch adds search features when buying items from any vendor

Fixes the Raid Frames after leaving combat