WowAce

Fade Blizzard Raid Frames

Angry Raid Points Client

Buff reminders and more

MainAssist

Various libraries based on LCD4Linux, offering users lower-level UI customizations.

Heads Up Display with Player and Target Info

StatStain

A menu with useful searches for Inventorian

Provide plenty of links

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

Configuration library

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

FuBar_ExperienceFu

Shows activity for hidden ChatFrames by making their tabs flash.

Simple display and management of Away / AFK / Busy / DND status via broker or minimap

Resizes some default UI frames (GuildUI, LootFrame, RaidInfo, TradeSkillUI and TrainerUI) to show more lines

Enables the filtering of items when you visit a vendor

A threat main view module for Recount

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

SurgeonGeneral