WowAce

Adds four icon indicators to Grid (top, bottom, left and right).

pMutilate

Automatic ammo reloading and selection, with warnings.

FuBar_AssistFu

BossWhisperer

Adds information to Titan Panel about your Professions and opens ProfessionsBook

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

Omniscience

ChatAssist2

Shows who controls Wintergrasp and the time until the next battle.

Restores channels and channel-window associations after disconnects remove them.

Tooltip scanning library.

Status indicator that shows the remaining of value of Powerword shield.

Lists and/or reminds people missing flasks or food buffs at every ready check.

Adds aura indicators to unit frames

Show optimal path for artifact leveling

Enhances the StackSplitFrame with numbered Buttons, a '1-Click Mode' and a 'Auto Split Mode'.

Keeps track of healing spells cast by everyone in a group.

Cryolysis 3

Eliminates the spam from the chatframe and sums it up in a broker plugin.