WowAce

Inserts some media that is already present in the game into LibSharedMedia's storage.

Cheaptard

Write event handlers in a simple GUI in-game

Allows frames to be dragged around, without permanently changing their position.

Announces results of readychecks to the raid/party, installs "/rc" alias, shows rc timer bar

With Mists of Pandaria Blizzard publish all characters from an account unless you disable that 'feature'. This addon warns you.

Tracks and reports party rolls

AvionDefaultMedia

Tool for easy task assignments in raids.

DaPortrait

Adds AFK status to Grid frames.

Displays an estimated time until you're out of mana

Allows raid leaders to view information on raid or guild member equipment information

Displays both Kalecgos and Sathrovarr the Corruptor hit points during the encounter.

FuBar_GemWatchFu

Provides bang-whispers for your professions.

Torta

LibAvion-1.0

GridLayoutPlus

Synchronise friends among your characters