
Mods that change the look or location of the tooltip:
CowTip is a customizeable, tag-based tooltip addon. CowTip isn't meant to be the smallest addon humanly possible, but it will be clean and configurable.
Download, Wowace, WoWInterface
Put the Game Tooltip wherever you want.
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Customizes your tooltips.
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TipTac is a tooltip enchancement addon, it allows you to configure various things such as changing the tip anchor, the font, the scale of tips, plus a lot more.
It can also show a special tip window for units instead of the normal one, which allows for extra customization, such as having it show buffs, debuffs, health and mana bar, this can of course be disabled if you prefer the normal tip.
Mods that add information/functionality to the tooltip:
This addon sends automatically /who <name of dead player> if you hover mouse pointer over a corpse. Alternative you can bind a key or do a mouse click to inspect the corpse. It adds then the information from the response to the tooltip. If the player is still online it adds race, class, level and the word 'Online' to the tooltip otherwise it adds Offline or <name of opposite faction>.
Adds vendor sell value to item tooltips
Download, Forum
Displays a list of matching gem cuts when hovering over empty sockets in the socketing interface, as well as adding a list of cuts to the tooltips for uncut gems.
JewelTips adds some extra information to tooltips for socketed and enchanted items.
It adds lines to the tooltip with the name of the enchant/jewel, and it shows icons on the left side of ItemRef tooltips (the kind with the red x that stay open until you close them) which you can mouseover to see another tooltip or shift click to link the item/enchant to chat.
WoWInterface
Adds all sorts of information to an item tooltip. Including but not limited to: Where items drop, who drops the item, droprates, how much rep you need for an item, what food type an item is, what professions can make an item, what professions can use this item, what profession can find this item, which items you can make that you can use this item in, what mining nodes certain gems come from and item stacksize.
Download, Wowace, WoWInterface
Allows you to add notes to mob tooltips.
Download, WoWInterface
Unlike fixed percentages such as 2% critical strike chance, combat ratings diminish in potency as your character increases in level. 2% crit is the same at every level, while 28 critical strike rating grants 4% crit at level 34, 2% crit at level 60, and 1.27% crit at level 70. This mod converts combat ratings in your tooltips into percentages for your current level. It also gives a Stat Summary for comparing gear. You can choose what stats you want to see.
Download, Wowace
Adds vendor sell value to item tooltips.
TankPoints was created to compare different pieces of tanking gear, because it was difficult to decided at a glance like whether 12 defense is better then 1 dodge. TankPoints can be seen as how much damage you can take before damage reduction, it considers your max health, armor, defense, dodge, parry, block, block value, resilience, crushing blow chance, miss, crit reduction, talants, buffs, stance/forms, and more.
Download, Wowace, WoWInterface
Simple item compare tooltips.
Download, WoWInterface