WowAce

A 'channeling spell'-tracking addon for Affliction Warlocks. Drain Soul, Drain Life/Harvest Life and Malefic Grasp.

Automatically sells low quality gray items and selected white items to the vendor.

Small addon to copy chat lines.

LD50_abar

VendorSearch adds search features when buying items from any vendor

Helper functions used by my addons, feel free to use them in your addon too

GridLayoutPlus

Adds the "pixel perfect" font "Silkscreen" to LibSharedMedia

TrapBar

LDB data source displaying character stats

A boss encounter engine used by other add-ons

JasonQuest

Quest information

For Developers (of Addons which uses LibWho-2.0): show queues and queries in realtime

Plays amusing sounds whenever you skin a mob

Track of your tradeskills across characters, create small buttons for them and track cooldowns.

Keeps track of people who have recently sent you messages.

Embeddable library to track raid/party roster

Used to visualize and change values of variables/variable-trees in game

Adds 3 indicators to each side (top, bottom, left and right).