WowAce

Adds tooltip for debuffs (and other things? you found out: no).

Bits

Shows on the minimap where to fetch Finklestein's reagents

TweakHub module to make your inbox a little friendlier.

Context-sensitive actions for certain frames on double-clicks.

WindowLib

FuBar_PvpFu

AutoGratz

Adds simple coordinates to minimap frame

A database of poeple wo can craft your items

Allows you to set up raid icon markings for all kinds of stuff.

Add TomTom Waypoints for Flight Masters in classic

Converts commonly used acronyms into hyperlinks.

Automatic switching to FFA loot for Mimiron phase 3

LibQuickHealth-2.0

RollCall-1.0

Adds spell-based range checking to Grid, and the ability to check multiple ranges.

Shows attachment count in Inbox icon.

Adds Yogg-Saron Sanity status to Grid.

ChatStamp