WowAce

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

Drops the least valuable item in your bags to make space.

WoWonid

Announce which globule to kill during the Yor'sahj the Unsleeping encounter.

ForceEnchant

CooldownTimers2 extension for extreamly long tradeskill cooldowns

Battle.net point query addon in Chinese realms(中国国服战网点插件)

Adds information to Titan Panel about your Professions and opens ProfessionsBook

KeepItCool

Helper addon for the Zul'Drak daily "Troll Patrol: The Alchemist's Apprentice"

WFtotem

User-configurable protection for your inventory. Automatically buys back mistakenly sold items.

GraphLib

Spy on your guild.

A mod to filter the Trade chat, shunting it to a seperate chat window if it exists (chat window is OMGWTFBBQ).

Tank statistics Data Broker plugin.

Filters unimportant Buffs.

Never forget which one in that 5-mob pull casts what spell again.

Selectively loots your fishing catches.

Pop a chatframe warning about guild battle standard when boss health reaches 30%