WowAce

A simple slash-command-based addon for querying item information from the Blizzard servers via ItemIDs and SpellIDs.

Adds a status to Grid for debuffs applied by Raid Bosses.

Unit frame addon using Ace3.

Adds mob patrol paths to your map.

Libra

Co-ordinated targetless Party and Raid wipe recovery. Evolved

XP bar using Ace3.

CT_RaidAssist style raid frames

Alternate Power- and Combopoint/SoulShard/HolyPower-bar

Configurable Castbars

Display aura information inside action buttons

Rebuff yourself with the mousewheel.

Try on different gear and see their total stats and their differences. In short, an ingame CT-Profiles-like addon.

Keeps account of attendance and loot for raids, parties, bgs, arenas and solo for questing.

Database of Diminishing return categories and general data

StatLogicLib

LibItemInfo-1.0

Bulk mail sending made really easy

Tracks the HoTs you cast.

Adds various information based on PeriodicTable to item tooltips.