WowAce

Rep2 displays a message, which shows how much reputation you gained, and how much is needed until the next standing.

Helper functions used by my addons, feel free to use them in your addon too

Shows the price of a single item in the Auction House.

Sphere

ClosetGnome_Mount

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

LittleTrouble

GatherHud for GatherMate2 with Routes support

Track any items you want in a tooltip

Henge

Allows customisation of login/logout system messages.

Party Ability Bars

Gives equipped and overall iLvl to indicate the quality of a character's gear.

Simple, nice-looking power bar addon for all classes.

Hides the Order Hall Command Bar

Gives a score for your kit allowing easy comparison with others, also colour codes kit based on appropriateness for your level.

Shows your FuBar addons in your LDB display.

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

Good looking, smoothy and helpful nameplates

Clean looking square minimap with many options.