WowAce

Minimap addon of awesomeness. *chewing sound*. It'll nibble your hay pellets.

All in one buffing mod for all classes. Paladin buff generated assignments based on Paladin capabilities and raid member sub-...

Unit Frames of awesomeness. Woof. It'll bite your face off.

Collectinator is an addon which will scan your pets and mounts and provide information on how to obtain them.

Lightweight but powerful auction house interface

Textures for Stop Motion

EBB adds groups of bars to your screen showing you which (de)buffs currently affect your toon or some other units.

Item stat breakdown, analysis and comparison

Timers for Buffs, DOTs, CC effects, etc..

Henge

Show the transmog appearance of an item when you mouse over it, and shows collection-status in bags, shops, and elsewhere. Works on transmog, mounts, pets, and decor.

Data Broker Display similar to FuBar

The Talent Template Editor

From bags we came, to bank we return

Numerical and graphical display of Combo Points and similar buffs/debuffs. Also tracks Holy Power and Soul Shards.

Complete tradeskill information.

Bulk mail sending made really easy

Max Camera

Enhances the default AddOns list.

Lightweight Chat Improvements