WowAce

Combat log evolved.

FuBar_VampwatchFu

Calculates incoming damage avoidance and mitigation

Angry Boss Reminders helps raiders switch to the proper talents, glyphs, and gear for each boss during a raid.

Fires events whenever a raid member "fails".

Upcoming events.

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

SmartyCat

Shows learned recipes of all characters.

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

VendorSearch adds search features when buying items from any vendor

Improved Quest Tracker

A simple, zero config, trash item seller

Merchant, gossip and taxi tweaking module for TweakHub.

Displays friend notes in unit tooltips, at logon, and in /who results.

Tank statistics Data Broker plugin.

pMutilate

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

A noble spirit embiggens the smallest player arrow.

Nudge