WowAce

Display an informational fighter jet style HUD while flying or riding

FuBar_TrainerFu

Heads Up Display with Player and Target Info

NameTagToggle

Displays the time remaining before your (temporary) pet is dismissed.

Gives detailed descriptions of particular localities, as zones or instances, and provides optional TomTom integration.

Cartographer_Mining

OneCore is the centralized code shared between the OneBag Suite

Open all your mail

Transcendence Monitor for Monks

Adds various hearthing items to AdiBags virtual groups

Monk Brewmaster/WindWalker Priority and Buff/Debuff Tracking Tool

Adds the toon name to the alert that your RealID friend has come online.

Monitors for friendly deaths and announces them as in Myth: The Fallen Lords

Calculates optimal reforging for given weights/caps.

Add-on that shows which mounts can be farmed this week

StarVisuals displays various data visualizations

pDebuffList

Considers an item against all the items you have to determine whether or not it is an upgrade

Hemlock