LDB (LibDataBroker) is an interface that allowsplugins to be displayed. Its kind of like FuBar or Titanpanel.
You will need a Display addon to allow the plugins to function.
Popular Display Addons:ChocolateBar, Bazooka
Plugins: WoWInterface, github
Glance Information Bar
Glance is a modular information bar with many modules provided by default. Glance has been built from the bottom up to allow developers to create their own data brokers. Each module can be enabled or disabled via the user interface, or the Glance Interface Options panel. So use what you like, turn off what you don't, and let me know what else you'd like to see. I encourage you to read through this somewhat lengthy description, to see just what Glance is capable of..
Adds a control panel/info box on top of the screen. Features the ability to have 1 or 2 Bars at the top and/or the bottom of your screen, many built in Addons that give great a great core set of features Easy to use Options to change features on the fly. Added Categories for Mod Authors to make finding there Mod easier inside Titan and help with Menu overload.
WoWInterface, Curse, Titan
An addon written for people who dedicate most of their time to leveling alts, and who want to have as much information as possible in one addon. Shows inventory, level, mail, etc...
Review: WoW Insider
All armory information as 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, Searchable achievements and statistics, Share quests, recipes and character information with other Armory users, Searchable Guild Bank that updates itself automatically.
AtlasLoot Enhanced is an UI mod allowing for loot tables of bosses to be browsed whenever needed within the game. It can access full item tooltips, show drop rates, allow items to be chat linked and to use the dressing room.
Glyph Reporter manages what Glyphs are needed on a realm-by-realm basis. When a Glyph is hovered over , the tooltip reports any known characters needing that glyph. It makes inscription disbursement quick and easy.
Adds SpellIDs and ItemIDs to the various ingame tooltips.
Shows the Average iLevel (AiL) of people you target in the tool tip. There is also a simple caching mechanism in order to not repeatedly inspect people that you already have data for however you can force a inspect of your target by typing /sil target