WowAce

A system config addon to WOW

Spy on your guild.

BigWigs_HealbotAssist

Add in keybindings to place raid marks on mouseover, or the target if there is no unit being moused over

Helps you see the Halion's Corporeality during phase 3

A library that tells wether a item is a quest item or not (equipped or in bags)

Collects and displays census information. This AddOn is licenced under the GNU GPL, see GPL.txt for details.

Skills plugin for any DataBroker display.

Allows you to loot BoP items without prompting when not in a group or raid

Library for tracking mouse gestures

Shows at-a-glance what raid buffs/debuffs you have.

Small addon to copy chat lines.

Adds pipes which can control arbitary other statuses (like toggle status on key or "in combat"-state).

Helps with interrupt notifications and announcements.

Converts commonly used acronyms into hyperlinks.

Configure which layout or profile to load on entering a zone

DungeonCrawler

An easy-to-follow guide for visiting all of the Midsummer Festival bonfires.

Ratings

Shows the group leader, raid assistants, and master looter in Grid.