WowAce

Allows tradeskill usage by clicking items or reagents.

Tracks vulnerability debuffs on multiple mobs

Quickly see what counter-combinations your epic followers cover and which ones are likely to get a new combination when rerol...

EUF is an enhance of wow original unit frames, provides hp with both value and %, and optional 3D portrait. Simple and Useful.

Dynamic item DKP calculation

TabletLib

Open inventory items with 1 button

Give logical progression of Mining, Herbalism & Skinning. Will not be updated with WoD zones

Hemlock

Simplifies GDKP bidding processes

Raid Frames using the oUF framework.

Prompts for canceling of pet battles if no rare pet is found in the opposing team.

FuBar_RaidBuffFu

Tankalyze

AVR Encounters

FlexBar2

Volume control panel.

Easily mail friends, guild members, alts and others

Babble-2.2

SacredBuff