WowAce

Reforges stuff

Instant SLAM! notification

Allows for easy congratulating when someone earns an achievement.

Role playing AddOn that shows extra information about characters as entered by the player.

Numen

Cancellation

A library to handle rearrangement of blizzard's frames when bars are added to the sides of the screen.

Tells you who bought your auctions.

Dynamically atering layout in raid environment (Tanks, Ranged / Melee DPS, Healers)

Adds two icon indicators to each corner (total: 8 icon indicators).

A lightweight addon that does something.

Ignore more than 49 people, autoshared between your alts

Friends & Guild Data Broker plugin.

MiniPet, Always keep your little companion with you, based on the work of Carra.

FuBar_ItemDBFu

Automatically sells low quality gray items and selected white items to the vendor.

Allows customisation of login/logout system messages.

LDB data source for herb, ore and skinning node data

Disease Tracker for Death Knights.

Sphere