http://www.diablofans.com/forums/diablo-iii-general-forums/diablo-iii-general-discussion/82397-list-of-skill-dmg-and-elemental-dmg-affixes

If you see a bonus (particularly on legendaries) that is out of the range I've given, let me know. I suspect some of these items have a smaller range listed in the Blizz database because they are low level legendaries, and the +%dmg range may actually increase when those items are rolled with lvl 60 stats. If people have some of these legendaries, they can check the ranges by holding down Ctrl. I have very few of them, so I could not check these things. Also, this list does not include pre-2.0 items (hopefully).
My goal here was to say i.e. "I want to run a Frozen Orb build, what is the best % dmg boost I can get in each slot?". 15 to orb in helm, 15 to cold in amulet, nothing in shoulders but maybe I could run Blizzard, 15 cold from Frostburns on hands, 15 to Blizzard on chest, 15 cold on bracers, 20 cold on SOJ, nothing on belt/pants, 15 to orb on boots, 20 to cold on Lidless Wall or 15 to orb on source, 20 to cold on Azurewrath. All told, +85% cold, +45% to orb, +30% to Blizzard.
Pietrak was also kind enough to remake this as a google spreadsheet , for those that wish to view it that way. It has filters, which you can use if you make a copy of it. I am keeping the google doc updated as I make updates to this page.

Diablo 2.0.2 Skill and Elemental Bonuses by Slot

Head (+5-15% unless noted)

All Classes

DH

  • Cluster Arrow
  • Multishot
  • Elemental Arrow
  • Strafe
  • Chakram
  • Rapid Fire
  • Impale

Barb

  • Whirlwind
  • Seismic Slam
  • Ancient Spear
  • Hammer of the Ancients

Wiz

WD

  • Acid Cloud
  • Spirit Barrage
  • Zombie Charger
  • Sacrifice
  • Firebats

Monk

Amulet

All Classes

Shoulders (+5-15% unless noted)

DH

  • Companion
  • Rain of Vengeance
  • Sentry
  • Spike Trap
  • Fan of Knives

Barb

  • Avalanche
  • Earthquake
  • Overpower
  • Rend
  • Revenge

Wiz

  • Black Hole
  • Blizzard
  • Familiar
  • Explosive Blast
  • Hydra

WD

  • Fetish Army
  • Gargantuan
  • Wall of Zombies
  • Grasp of the Dead
  • Haunt
  • Locust Swarm
  • Piranhas
  • Summon Zombie Dogs

Monk

  • Dashing Strike
  • Seven-Sided Strike
  • Mystic Ally
  • Sweeping Wind
  • Cyclone Strike

Crusader

  • Falling Sword
  • Heaven’s Fury

Gloves

All Classes

Chest (+5-15% unless noted)

All Classes

DH

  • Companion
  • Rain of Vengeance
  • Sentry
  • Spike Trap
  • Fan of Knives

Barb

  • Avalanche
  • Earthquake
  • Overpower
  • Rend
  • Revenge

Wiz

  • Black Hole
  • Blizzard
  • Familiar
  • Hydra
  • Explosive Blast

WD

  • Fetish Army
  • Gargantuan
  • Wall of Zombies
  • Grasp of the Dead
  • Haunt
  • Locust Swarm
  • Piranhas
  • Summon Zombie Dogs

Monk

  • Dashing Strike
  • Seven-Sided Strike
  • Mystic Ally
  • Sweeping Wind
  • Cyclone Strike

Crusader

  • Falling Sword
  • Heaven’s Fury

Bracers

All Classes

  • +5–15% damage to any damage type on rares.
  • +10-20%damage to any damage type on legendaries.

Ring

All Classes

Belt (+5-15% unless noted)

  • All Belt skills are resource generators.

All Classes

DH

Barb

  • Frenzy
  • Cleave
  • Bash
  • Weapon Throw

Wiz

  • Electrocute
  • Spectral Blade
  • Shock Pulse
  • Magic Missile

WD

  • Firebomb
  • Plague of Toads
  • Corpse Spiders
  • Poison Dart

Monk

  • Way of the Hundred Fists
  • Crippling
  • Deadly Reach
  • Fists of Thunder

Crusader

  • Punish

Pants (+5-15% unless noted)

  • All Pants skills are resource generators.

All Classes

DH

  • Grenade Damage
  • Evasive Fire
  • Bolas
  • Entangling Shot
  • Hungering Arrow

Barb

  • Frenzy
  • Cleave
  • Bash
  • Weapon Throw

Wiz

  • Electrocute
  • Spectral Blade
  • Shock Pulse
  • Magic Missile

WD

  • Firebomb
  • Plague of Toads
  • Corpse Spiders
  • Poison Dart

Monk

  • Way of the Hundred Fists
  • Crippling
  • Deadly Reach
  • Fists of Thunder

Crusader

  • Punish

Boots (+5-15% unless noted)

DH

  • Cluster Arrow
  • Multishot
  • Elemental Arrow
  • Strafe
  • Chakram
  • Rapid Fire
  • Impale

Barb

  • Whirlwind
  • Seismic Slam
  • Ancient Spear
  • Hammer of the Ancients

Wiz

  • Meteor
  • Disintegrate
  • Energy Twister
  • Arcane Torrent
  • Wave of Force
  • Arcane Orb
  • Ray of Frost

WD

  • Acid Cloud
  • Spirit Barrage
  • Zombie Charger
  • Sacrifice
  • Firebats

Monk

  • Tempest Rush
  • Exploding Palm
  • Wave of Light
  • Lashing Tail Kick

Off Hand

Shield

Mojos (+5-15% unless noted)

  • Spirit Barrage
  • Locust Swarm
  • Plague of Toads
  • Haunt
  • Firebats
  • Grasp of the Dead
  • Sacrifice
  • Fetish Army
  • Zombie Charger
  • Corpse Spiders
  • Acid Cloud
  • Poison Dart
  • Wall of Zombies

Sources (+5-15% unless noted)


Quivers (+5-15% unless noted)

  • Cluster Arrow
  • Multishot
  • Elemental Arrow
  • Strafe
  • Chakram
  • Rapid Fire
  • Impale

1H

All Classes



Barb


Wiz

Monk

Crusader

2H

All Classes

Monk