WowAce

Displays the zone level ranage of the zone you are in and also gives you a suggest zone and instances to be in.

Keeps track of space left in your bags.

Shows your standings with the factions.

FuBar_ItemBonusesFu

Addon to switch all your AceDB profiles via slash command. This tool also allows you to emulate profiles for non AceDB addons.

Adds resurrection and soulstone status to Grid, using LibResComm-1.0.

GDKP gold run ledger

LDB data source displaying rested XP for whole account

Resizes some default UI frames (GuildUI, LootFrame, RaidInfo, TradeSkillUI and TrainerUI) to show more lines

Helps you automate selling stuff

Gives detailed descriptions of particular localities, as zones or instances, and provides optional TomTom integration.

Check the consumable usage of your raid

Mutt (Macro Update Target Tool) provides slash-commands that can patch the predefined targets in your macros.

Display an informational fighter jet style HUD while flying or riding

Library handling communcation for Magic* addons

Client for allowing the raid leader to gauge interest on items in a method similar to a ready-check.

Cartographer_nnTrainers

Acolyte2

A clone of the FailBot mod. Announces raid member failures such as "Player1 fails at frogger"

Options for TinyTip