WowAce

Wrapper to convert HealComm data from 3.0 to 4.0

LDB display addon with one Blockoblock per plugin.

LootWhore

Filters unimportant Buffs.

A customizable buff/debuff display replacement for the default Blizzard frames (with right click cancelaura support).

Party and Raid roster library - one library for any group

Raid assignments planner

Colors friends/bg score board/who list names by class color

See all incoming casts on your target. Also includes resurrection monitor. Uses libhealcomm-3.0 and librescomm-1.0

Automatically converts a party to a raid when you attempt to zone into a raid zone without a raid.

Adds aggro coloring to oUF.

Joins the LFG channel automatically.

Display who did the Worship interrupting on Chogall

Adds notes to item tooltips

Steroids

MeleeFrame

Converts commonly used acronyms into hyperlinks.

Allows raid leaders to view information on raid or guild member equipment information

The ultimate in lazy Ulduar raiding

Color manipulation library.