WowAce

Shows guild and system message of the day only if either one of them has changed since the last login.

Reserve raider tracking for EPGP.

Adds aura indicators to unit frames

BigWigs_HealbotAssist

SalvationKiller

Bars showing amount of buffstacks

Enable/Disable addons for your character in game

LibAvionAddin-1.0

In-game EPGP guild helper, supports standby, main/alt shared pools, minEP, offpecGP. Fixed price list with progress multiplier.

Hunter pet manager for any DataBroker(LDB) display.

DungeonCrawler

Keeps track of gold and cash flow across multiple characters

Objective Tracker

Libary for cleanly inspecting other players

Fancy up the ExtraActionButton frame

Control screenshot format and quality via LDB displays

A shaman mod

Drops the least valuable item in your bags to make space.

A raid buff tracker

A Healing Assignment management addon