WowAce

Adds a status for when a unit is being resurrected.

Status for self

Adds Statuses for group: leader / assistant / master looter.

Yet another HUD addon

Adds PvP status to Grid frames.

PitBull4_Extras

Show helper indicators for units conditions (buffs, states, etc).

Show an "alternate power" bar for boss encounters.

Tracks Prayer of Mending and changes color based on the number stacked

Marks ignored players in Grid2 with a color and text notification

Shows a bar when your Lifebloom spell is active on a PitBull unit frame.

oUF_IncomingHeals

Adds 4 text indicators to the Grid frames.

PitBull_Brutallus

PitBull_Kalecgos

An enhancement to the built-in raid frames to change color for debuffs.

Kollektiv Unit Frames

Hide frames of people you've ignored.

Display an indicator to show your Penetrating Cold target(s).

Adds Yogg-Saron Sanity status to Grid.