WowAce

One Click Forced Exit / Logout / Reload UI button for Broker

TrainingWheels

Pet feeder, called by "/click FeedItButton" from a macro.

Notifies the raid when someone is Dazed.

Light-weight enhanced casting bars

Notifies you of new calendar event invites and reminds of upcoming events on all characters and realms

cyCircled_GoldOrbs

Smooth combat HUD based on ArcHUD2

LibRockEvent-1.0

Display fails based on EnsidiaFails filtering options in Skada

Skip the gossip and select the normal NPC action

Reports the total threat on a mob at the end of combat.

LDB data feed plugin designed to display various statistics derived from the Recount addon.

Adds unreal tournament style sounds to PvP encounters.

MeleeFrame

Really very early stage. No, earlier than that.

Show an in combat indicator

OneStorage

Shift-clicking on a user name in chat shows a tooltip with their whois information.

Crush Chance