WowAce

Display aura information inside action buttons

Tooltip of awesomeness. Moo. It'll graze your pasture.

Adds mob patrol paths to your map.

Alternate Power- and Combopoint/SoulShard/HolyPower-bar

Rebuff yourself with the mousewheel.

Configurable Castbars

XP bar using Ace3.

CT_RaidAssist style raid frames

Co-ordinated targetless Party and Raid wipe recovery. Evolved

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

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

StatLogicLib

Automated smart raid marking to speed up trash clearing in instance runs

Adds various information based on PeriodicTable to item tooltips.

Collects Herbs, Mines, Gas Clouds and Fishing locations and adds them to the worldmap and minimap

Tracks the HoTs you cast.

Quest History tracker and shows lists of quests in each category

Bulk mail sending made really easy

Violation

One large inventory.