WowAce

It's a doodle pad for doodling with doodles.

GraphLib

A simple addon that warns you if your pet isn't attacking while you're in combat.

Allows for gold tracking across multiple time frames

WeaponRebuff

TipHookerLib

LD50_abar

Shows missing buffs and handles welfare and deluxe buffs as one (motw/gotw, blessings, etc.). This lets you see when you nee...

DreamChat

Customizing your buff display

Good looking, smoothy and helpful nameplates

Counts stacked lifeblooms and uses progressive colors to indicate the active number of HOTs.

Display an arrow that points to a raid/party member anchored to raid frames

Display who crossed the charges on Thaddius

Shows the price of a single item in the Auction House.

Calculates incoming damage avoidance and mitigation

Display combo points for Arcane Blast debuffs

Complain about crowd control breaks.

This is an add-on to block incoming guild/party/duel requests (except for friends/party/guild) (previously ASSBlock)

A seperate focus bar, with focus gain prediction and rotation forecast.