WowAce

Displays online friends.

Food/water macro generator

Keeps track of your current location.

Improved Questing Experience

Keeps track of quests.

HideTalkingHead

Add-on that shows which mounts can be farmed this week

Set and manage character notes that are displayed in unit tooltips and /who results.

A Collection of Automations and Interface Tweaks.

Utility library with shared functions and data for various addons by NeoTron.

Enhances the default AddOns list.

Tracks, transmits and displays the cooldowns of your raid.

MendWatch

Display Garrison missons for all Characters

Manages social information with a focus on main-alt associations.

A Friend-Enemy-Unit-Frame for battlegrounds.

Display auras on action buttons.

UnitActionBars

Keeps track of your top hits, heals, criticals, etc.

Raid Frames using the oUF framework.