WowAce

Randomly instructs your warriors to apply Shattering Throw.

Dual-spec equipment set switcher

Records special in-game moments; Achievements, Reputation Gains, Level Ups, Battleground & Arena Wins, so you never miss one ...

Vocal warning for Lava Wave for the Ragnaros encounter

Creates a new, movable, fully customizable quest watch frame.

Adds HTML output to Ouro Loot

bgsounds

Displays an estimated swing timer for monsters

Removes HP buffs when reaching phase 3 during the Anub'arak encounter

Says "aloud" the NPC's texts

Prints the cooldown/GCD on the last spell cast to chat.

SummoningBar

Stop Peggle from spamming you.

Raid warnings and extra awareness for the Algalon encounter

NoSeeNoInterrupt

GridLayoutForHealers

FuBar - LogFu2

Shows names on NPC nameplates

Engulf

Experience is an addon that helps you evaluate another player's dungeon experience.