Best Wow Mods

All armory information as (once) seen on the offical site from Blizzard Entertainment, in game, for all your characters, on all realms
Information about all skills of your characters, including professions with recipes
PVP information, including arena teams
Searchable inventory, including bags, bank, mailbox and auctioned items
Quest logs and spell books of all your characters
Friends, ignores and events of all your characters
Searchable achievements and statistics
Share quests, recipes and character information with other Armory users
Searchable Guild Bank that updates itself automatically without visiting the bank yourself

Track-o-Matique
Automatic tracking of the current target’s creature type. For the discerning PvE hunter.

First and foremost targeted at the talent Improved Tracking, but it seems like it may be useful even outside of that.