Cataclysm Addons

Paste is a small utility that enables multi-line/unlimited-length pasting of text or commands into WoW

Powerful Class AddOn for Raiders.

Keybinding UI for Items, Spells and Macros.

Provides helpful buff reminders for Warlocks.

Adds information about the hovered mob to the tooltip and shows health/mana.

OPie lets you group actions into rings which appear when you hold down a key.

Floating Combat Text of awesomeness. Caw. It'll eat your crackers.

Filter out specific debuffs and buffs into separate frames.

Makes it easier to earn dungeon and raid achievements.

The addon lets you create as much action bars as you want.

Numerical & customizable display of current combo points.

TradeSkillInfo gives you all the information that you need about tradeskills.

PvP timer and cool down tracking mod.

It contains a lot of useful functions no matter which spec you are.

Minimap addon of awesomeness. It'll nibble your hay pellets.

EBB adds groups of bars to your screen showing you which (de)buffs currently affect your char.

TriviaBot allows the user to host quiz games for other players.

One-key solution for mounting/dismounting, supports spells, shapeshifting.

Saves your normal and critical records and flashes a message if you break the record.

Cast the most important buffs on you or party or raid members.

Ignore more than 49 people, autoshared between your alts.

iShadow adds shadowed border to the UI window.

EPGP Lootmaster provides a nice GUI for distributing loot and GP to the raid.

See every combat log event that led up to a player's death.