WowAce

T_ItemInfo

Speeds up triggering actions such as items or spells by triggering them on key/mouse down rather than release

Shows your standings with the factions.

Tracks your keystones

Shows a nice Soulstone Monitor.

FuBar_CombatTimeFu

Fires events whenever a raid member "fails".

Don't underestimate your little critters!

Automagical macros for each talent tier.

FruityLoots

Simple, light-weight, LDB-enabled timer that tracks how long you spend in combat

Simple language selection for Data Broker

Voyeur

Collect data about you myth+ challenges

FuBar_MiniClockFu

Uses guild notes to add alts' main names to chat windows and other places

Should I send that recipe to my alt?

ChatHighlighter

Group interrupt cooldown tracking.

Creates simple table controls for tabular text data.