WowAce

LDB data source for herb, ore and skinning node data

BA3_SpellAbilities

This will keep track of how much you have paid per item in your inventory. Only one of (Auctionator, Auctioneer, AuctionLite,...

A Library for stat conversion, calculation and summarization.

AspectsBar

Cartographer_Noteshare

Saves contents of your guild bank and sends/receives updates over the addon channel

Monitor the remaining duration on your Mysterious Eggs and other perishable items.

Adds aura indicators to unit frames

Cartographer_ExtractGas

Klappa

Crowd-control monitor

Niagara

Test whether the player can really dispell a buff or debuff, given its talents.

Scans your Equipment for cumulative item bonuses and sums them up.

Show coordinates on minimap

Display the global cooldown around your cursor. (+ other stuff)

A library to help with localization of Archeology dig sites

tekSupport

Add a line to herb tooltips that shows what pigment they produce.