WowAce

Lists Pots and Herbs you got on all chars and allows you to specify color coding

GPriceEach

TextSpy

EyeCandy

Reverse Engineering will drill down and search your tradeskills for their elements

Angry Boss Reminders helps raiders switch to the proper talents, glyphs, and gear for each boss during a raid.

Shows Chat as Combat Text

Swiss Army knife for instances, including player tracking, ignore buttons, loot tracking, notes, and more.

Menagerie

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

Monitor the remaining duration on your Mysterious Eggs and other perishable items.

Adds a button to your character and inspect window that shows a summary of gear enchants and gems.

SurgeonGeneral Listen CLient

Adds information to Titan Panel about your Professions and opens ProfessionsBook

Saves who searches in a favorites list.

Shows current/dot cast haste values

A superior broker/LDB display for users of the Recount damage-meter.

Augmented Virtual Reality. Draw and add markers in the 3d world.

Announces interrupts in the chat

GearRating