WowAce

oUF module providing LIbScriptable bar widgets for layout use.

LibStringStorage-1.0

Autogz

WeakSauce

Random mount and vanity pet buttons

OrbMaster

LibProcs is a library of item and spell procs.

ItemAuditor2

Addon for knowing exactly when you get out of combat so that you can drink.

oUF_Kael

SayBox

Helps players with those tricky timed achievements

Absorb tracker using Blizzards numbers

Prevents your action bars from changing when you switch specs. Type /msb or /mergespecbars for options.

Border Color

BhLogros

Alert for Polymorph and Hex.

Guild bank log exporter

MoreActionBars

Polaroide