Movement speed effects

The following tables compares various movement methods and bonuses.

Aquatic
Basic swimming speed is 413/18 yards per second, which is just over two-thirds of the 7 yd/sec running speed.

Bonuses
The items below increase movement speed on foot by various amounts, and may or may not stack with other movement speed bonuses.

Enchantments:
 * Enchant Boots - Minor Speed
 * Enchant Boots - Cat's Swiftness
 * Enchant Boots - Boar's Speed

Gems:
 * Quickened Starfire Diamond
 * Swift Windfire Diamond
 * Swift Skyfire Diamond
 * Swift Skyflare Diamond
 * Tireless Skyflare Diamond
 * Swift Starflare Diamond
 * Tireless Starflare Diamond

Passive Equip Items:
 * Defiler's Cloth Boots
 * Highlander's Cloth Boots
 * Figurine - Golden Hare
 * Sprinter's Sword
 * Explorer's Walking Stick
 * Runeblade of Baron Rivendare
 * Earthen Netherscale Boots
 * Devastation
 * Warp Slicer

Active (Use) Equip Items:
 * Egg Basket
 * Skull of Impending Doom
 * Nifty Stopwatch
 * Figurine - Golden Hare
 * Figurine - Ruby Hare
 * Swift Boots
 * Gnomish Rocket Boots
 * Goblin Rocket Boots
 * Rocket Boots Xtreme
 * Rocket Boots Xtreme Lite

Temporarily Consumables:
 * Swiftness Potion
 * Swiftness of Zanza
 * Drums of Speed

Bonuses

 * +2% from Enchant Gloves - Riding Skill
 * +3% from Carrot on a Stick
 * +4% from Mithril Spurs
 * +5% from Pathfinding 1, or Gloves & Carrot
 * +6% from Spurs & Gloves
 * +7% from Spurs & Carrot
 * +8% from Pursuit of Justice 1
 * +9% from Spurs & Gloves & Carrot
 * +10% from On a Pale Horse 1, Pathfinding 2, Riding Crop, Skybreaker Whip, or Mount Up
 * +15% from Pursuit of Justice 2
 * +20% from Crusader Aura, or On a Pale Horse 2
 * +40% from Aura Mastery with Crusader Aura

Speed decreasing effects
This is a list of abilities that decreases or completely halts a target's movement.

Debuffs that decrease or stops movement

 * Sleep debuffs can stop movement.
 * Stun debuffs can stop movement.
 * Charm debuffs can stop movement.
 * Incapacitate debuffs can stop movement.
 * Root debuffs can stop movement.
 * Snare debuffs can decrease movement.
 * Slow debuffs can decrease movement.
 * Daze debuffs can decrease movement.

Debuff abilities from trainers

 * Death Knight
 * Chains of Ice (slow)
 * Druid
 * Bash (stun)
 * Entangling Roots (root)
 * Pounce (stun)
 * Nature's Grasp (root)
 * Hurricane (slow)
 * Hibernate (sleep)
 * Cyclone (incapacitate)
 * Hunter
 * Wing Clip (slow)
 * Concussive Shot (daze)
 * Freezing Trap (slow)
 * Frost Trap (snare)
 * Snake Trap -> Crippling Poison (slow)
 * Freezing Arrow (stun)
 * Mage
 * Frostbolt (slow)
 * Frost Armor (slow)
 * Cone of Cold (slow)
 * Frost Nova (root)
 * Ice Armor (slow)
 * Frostfire Bolt (slow)
 * Paladin
 * Hammer of Justice (stun)
 * Judgement of Justice (stun)
 * Holy Wrath (versus undead) (stun)
 * Priest
 * Shackle Undead (versus undead) (incapacitate)
 * Rogue
 * Kidney Shot (stun)
 * Gouge (incapacitate)
 * Sap (incapacitate)
 * Cheap Shot (stun)
 * Deadly Throw (slow)
 * Crippling Poison (slow)
 * Shaman
 * Earthbind Totem (snare)
 * Stoneclaw Totem (stun)
 * Warlock
 * Summon Succubus -> Seduction (charm)
 * Banish (versus elementals and demons) (incapacitate)
 * Inferno (stun)
 * Warrior
 * Charge (stun)
 * Shield Bash (stun)
 * Hamstring (slow)
 * Thunderclap (snare)
 * Intercept (stun)

Debuff abilities from talents

 * Death Knight
 * Hungering Cold (incapacitate)
 * Druid
 * Feral Charge - Bear (stun)
 * Hunter
 * Counterattack (root)
 * Entrapment, when combined with Frost Trap and Snake Trap (root)
 * Concussive Barrage, when combined with Chimera Shot and Multi-Shot (daze)
 * Mage
 * Slow (slow)
 * Permafrost (slow)
 * Frostbite (mage talent) (root)
 * Chilled to the Bone (slow)
 * Deep Freeze (stun)
 * Improved Blizzard, when combined with Blizzard (slow)
 * Shattered Barrier, when combined with Ice Barrier (root)
 * Paladin
 * Repentance (incapacitate)
 * Avenger's Shield (daze)
 * Priest
 * Mind Flay (slow)
 * Rogue
 * Blade Twisting (daze)
 * Shaman
 * Storm, Earth and Fire, when combined with Earthbind Totem (root)
 * Warlock
 * Curse of Exhaustion (slow)
 * Shadowfury (stun)
 * Metamorphosis -> Demon Charge (stun)
 * Summon Felguard -> Intercept (stun)
 * Aftermath, when combined with Conflagrate (daze)
 * Improved Fear, when combined with Fear (slow)
 * Warrior
 * Concussion Blow (stun)
 * Piercing Howl (daze)
 * Improved Thunder Clap, when combined with Thunder Clap (slow)
 * Improved Hamstring, when combined with Hamstring (root)