WowAce

A Library for stat conversion, calculation and summarization.

cyCircled

Heads Up Display with Player and Target Info

Allows for easy congratulating when someone earns an achievement.

Manages tracking of raid attendance, loot, and more.

A superior broker/LDB display for users of the Recount damage-meter.

FuBar_BongosFu

Prompts for canceling of pet battles if no rare pet is found in the opposing team.

Cancellation

Automatically generate and announce optimal spirit totem assignments during the Gara'jal encounter in Mogu'shan Vaults.

Reminds you if your flask/elixir and/or Augmentation Rune and/orfood buff is about to expire or has expired

A Data Broker display for combat statistics.

Fancy up the PlayerPowerBarAlt frame

A threat main view module for Recount

Acolyte2

FuBar_uGuild

Library to help with querying unit talents.

For Developers (of Addons which uses LibWho-2.0): show queues and queries in realtime

SRA

Powerleveling guide framework