Hand of Vengeance

The Hand of Vengeance is the group of Forsaken forces that have been sent to Northrend by Sylvanas Windrunner to bring Undercity's vengeance upon the Lich King. Their method is the delivery of the latest strain of their deadly Plague. They have allied with The Taunka and the Warsong Offensive, under the leadership of the Horde Expedition, in order to oppose the Lich King.

Howling Fjord

 * Northern Cooking (75 Hand of Vengeance)
 * Gem Perfection (Vengeance Landing) (75 Hand of Vengeance)
 * Let Them Eat Crow (250 Hand of Vengeance)
 * Sniff Out the Enemy (150 Horde Expedition)
 * The Dragonskin Map (75 Horde Expedition)
 * The Offensive Begins (10 Horde Expedition)
 * A Lesson in Fear (250 Horde Expedition)
 * Baleheim Bodycount (250 Hand of Vengeance)
 * Baleheim Must Burn! (150 Horde Expedition)
 * The Ambush (350 Hand of Vengeance)
 * Adding Injury to Insult (350 Horde Expedition)
 * The New Plague (250 Horde Expedition)
 * Spiking the Mix (no reputation)
 * Test at Sea (250 Hand of Vengeance)
 * New Agamand (quest) (10 Hand of Vengeance)
 * A Tailor-Made Formula (250 Hand of Vengeance)
 * Apply Heat and Stir (150 Hand of Vengeance)
 * Field Test (250 Hand of Vengeance)
 * Time for Cleanup
 * Shield Hill (quest) (250 Horde Expedition)
 * Parts for the Job (250 Horde Expedition)
 * Time for Cleanup (250 Horde Expedition)
 * Warning: Some Assembly Required (250 Horde Expedition)
 * War is Hell (250 Hand of Vengeance)
 * Reports from the Field (150 Hand of Vengeance)
 * The Windrunner Fleet (quest) (25 Horde Expedition)
 * Ambushed! (150 Horde Expedition)
 * Guide Our Sights (250 Hand of Vengeance)
 * Landing the Killing Blow (350 Hand of Vengeance)
 * Report to Anselm (75 Hand of Vengeance)
 * A Score to Settle (500 Horde Expedition)
 * Trail of Fire (350 Horde Expedition)
 * Against Nifflevar (250 Hand of Vengeance)
 * Green Eggs and Whelps (250 Hand of Vengeance)
 * Draconis Gastritis (250 Hand of Vengeance)
 * Give it a Name (10 Hand of Vengeance)
 * To Venomspite! (10 Hand of Vengeance)
 * And You Thought Murlocs Smelled Bad! (Horde) (250 Hand of Vengeance)
 * It's a Scourge Device (Horde) (10 Hand of Vengeance)
 * Bring Down Those Shields (Horde) (350 Hand of Vengeance)
 * Keeping Watch on the Interlopers (no reputation)
 * What's in That Brew? (250 Hand of Vengeance)
 * Brains! Brains! Brains! (250 Hand of Vengeance)

Venomspite

 * Give it a Name (10 Hand of Vengeance)
 * To Venomspite! (10 Hand of Vengeance)
 * Imbeciles Abound! (25 Hand of Vengeance)
 * The Forsaken Blight and You: How Not to Die (250 Hand of Vengeance)
 * Emerald Dragon Tears (250 Hand of Vengeance)
 * Spread the Good Word (250 Hand of Vengeance)
 * The Forsaken Blight (quest) (150 Hand of Vengeance)
 * Beachfront Property (250 Hand of Vengeance)
 * Funding the War Effort (250 Hand of Vengeance)
 * WANTED: The Scarlet Onslaught (250 Hand of Vengeance)
 * No Mercy for the Captured (250 Hand of Vengeance)
 * Torture the Torturer (250 Hand of Vengeance)
 * The Rod of Compulsion (75 Hand of Vengeance)
 * The Denouncement (350 Hand of Vengeance)
 * Materiel Plunder (250 Hand of Vengeance)
 * Fresh Remounts (250 Hand of Vengeance)
 * Blighted Last Rites (10 Hand of Vengeance)
 * Let Them Not Rise! (250 Hand of Vengeance)
 * A Means to an End (250 Hand of Vengeance)
 * Fire Upon the Waters (250 Hand of Vengeance)
 * Stealing from the Siegesmiths (250 Hand of Vengeance)
 * Bombard the Ballistae (250 Hand of Vengeance)
 * Need to Know (250 Hand of Vengeance)
 * The Spy in New Hearthglen (250 Hand of Vengeance)
 * Without a Prayer (250 Hand of Vengeance)
 * The Perfect Dissemblance (250 Hand of Vengeance)
 * A Fall From Grace (250 Hand of Vengeance)
 * The Truth Will Out (250 Hand of Vengeance)
 * Do Unto Others (350 Hand of Vengeance)

Reputation
As of patch 3.3, you can farm reputation for this faction by running WotLK Heroic Dungeons while not wearing any tabard.

The following daily quests give 62 to 63 reputation points:
 * Battle Before The Citadel
 * King of the Mountain (Horde)
 * Taking Battle To The Enemy
 * Among the Champions
 * Keeping the Alliance Blind
 * Threat From Above
 * Blood of the Chosen (Horde)
 * Assault by Air (Horde)
 * Assault by Ground (Horde)