WowAce

Show a rough range indicator

FuBar_TinyTipFu

FuBar_tTracker

Shows you a typing indicator when people are typing to you.

CleanShot

Adds a third text indicator to Grid.

TradeBar

A library to provide a way to easily create controls for Blizzard's options system

BossWhisperer

Shows more recipies in the profession window.

Small Box Icon Pack for Cartographer

Show a bar indicating the unit's Holy Power count.

Show a bar indicating the attack power gained from Vengeance.

Adds pipes which can control arbitary other statuses (like toggle status on key or "in combat"-state).

Show who is targeted by at least one enemy, and the casting progress of the incoming spell.

DaPortrait

Spy on your guild.

Automatically converts a party to a raid when you attempt to zone into a raid zone without a raid.

Langoustine

Provides a library for accessing auction data and pricing from various Auction Data mods