WowAce

GemList

Simple and clean Death Knight displays

Adds a couple of graph displays to Skada.

Cartographer_Trainers

Collect data about you myth+ challenges

Provides the ability to suppress specific spellcasts like "Deaden" from your casting bars.

EUF is an enhance of wow original unit frames, provides hp with both value and %, and optional 3D portrait. Simple and Useful.

Quest helping: fetching items to use, that sort of thing.

Options for TinyTip

Cartographer_NoteTarget

InstanceMaps

Show a texture on demand

Quickly assign the highest follower to each building or unassign all of them.

Allows the user to customize the the tooltip with lua-scripts

PoisonMenu

A DPS Data Broker plugin.

Creates new chats with guild channel functionality

opens/closes all bags when at merchant (instead of only the backpack)

Tracks your keystones

A popup menu containing user-programmable scripts.