WowAce

Enhances the Equipment Manager to let you control the helm/cloak visibility for each set.

oUF element for highlighting debuffs that are dispellable by the player

pDebuffList

One-click smart mounting.

fmBuffCheck

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

Note + rep tracking for players, with guild data sharing.

FuBar_VoiceFu

WhiteboardNG

Watch tooltip updates to announce when you find specific objects

FuBar_ShardCountFu

GetInLine

RaidInfo

FuBar_SoulJarFu

PriceTag

Shared handling of media data (fonts, sounds, textures, ...) between addons.

Cartographer_Noteshare

ColaLight

ClosetGnome_Mount

FuBar_CharmsFu