WowAce

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

ActionCombat

Spyglass

Clean looking square minimap with many options.

Quest helping: fetching items to use, that sort of thing.

Auto sizes frame layout depending on group/raid size or predefined zone data

You've got mail!

Bidder for DKP points. Usable as standalone bidder, or with DKP - Manager to manage points.

Enhances the StackSplitFrame with numbered Buttons, a '1-Click Mode' and a 'Auto Split Mode'.

Keeps track of resurrection spells cast in a group

A boss encounter engine used by other add-ons

Adds four icon indicators to Grid (top, bottom, left and right).

Database of FlightMaster locations for HandyNotes

SurgeonGeneral Listen CLient

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

item2phpBB

Centralised management hub for small tweak, interface and utility addons.

GonffBar

Helps you automate selling stuff.

A PitBull4 module which shows an arrow that points to raid members