WoW Grinding Guide Alliance

Elite Area: Mo'grosh mound (Loch Modan)
Instance: Deadmines
Level 20-22:

Redridge Mountains [Lakeshire, Tower of Azora in Elwynn]
Level 22-30:

Redridge Mountains [Lakeshire, Tower of Azora in Elwynn]
Duskwood [Darkshire, Sven's Camp, Abercrombie]
Wetlands [Menethil Harbor, Greenwarden, N. Loch Modan (The Algaz Gauntlet)]
Ashenvale [Astranaar ?]
Stonetalon Mountains [?]
Elite Area: Dun Modr (Wetlands)
Instance: The Stockades
Instance: Shadowfang Keep
Instance: Blackfathom Deeps
Happy Loot: Naraxis' Fang (Duskwood)
Happy Loot: Tiny Crimson Whelpling (Wetlands)
Grind Area [26]: Dragonmaw Encampment (Wetlands)
Grind Area [26]: Whelgar's Excavation Site (Wetlands)
Grind Area [28]: Rotting Orchard (Duskwood)
Grind Area [28]: Raven Hill Cemetary (Duskwood)
Grind Area [29]: Vul'Gol Ogre Mound (Duskwood)
Level 31-37:

Stranglethorn Vale [Rebel Camp, Nesingwary's Expedition, Booty Bay]
Hillsbrad Foothills [Southshore]
Arathi Highlands [Refuge Pointe]
Desolace [32]
Thousand Needles [31]
Instance: Gnomeregan
Happy Loot: Howling Blade (Skhowl, Alterac Mountains)
Happy Loot: Toxic Revenger (Gnomeregan)
Happy Loot: Tiny Emerald Whelpling (Swamp of Sorrows)
Grind Area [31]: Kurzen Encampment (Stranglethorn Vale)
Grind Area [33]: Stranglethorn Raptors (Stranglethorn Vale)
Grind Area [33]: Growless Cave (Alterac Mountains)
Grind Area [34]: Gallow's Corner (Crushridge Ogres
Altarac Mountains)
Grind Area [36]: Venture Co. Base Camp (Lake Nazferiti
Stranglethorn Vale)
Level 37-43:

Stranglethorn Vale
Arathi Mountains [Refuge Pointe, Faldir's Cove]
Badlands [Various camps around the zone]
Desolace [37]
Elite Area: Stromgarde
Elite Area: Mosh'ogg Mound
Instance: Scarlet Monastery
Instance: Uldaman
Instance: Razorfen Downs
Happy Loot: Tiny Black Whelpling (Badlands)
Grind Area [37]: Lashtail Raptors (Stranglethorn Vale)
Grind Area [37]: Water Elementals (Stranglethorn Vale)
Grind Area [39]: The spider cave north of Brackenwall (Swamp of Sorrows)
Grind Area [39]: Rock Elementals (Badlands)
Grind Area [39]: Elder Crag Coyotes (Badlands)
Grind Area [41]: Scalding Whelps (Badlands)
Grind Area [41]: Agmond's End (Badlands)
Grind Area [41]: Ziata'jai Ruins (Venture Co. Stuff, Stranglethorn Vale)
Grind Area [43]: Naga Explorers (Stranglethorn Vale)
Level 43-46:

Feralas [Feathermoon Stronghold]
Tanaris [Gadgetzan, Steamwheedle Port]
Instance: Zul'Farrak
Grind Area [43]: Wastewander Bandits (Tanaris)
Grind Area [44]: Isle of Dread (Feralas
Inside Cave; South of Feathermoon Stronghold)
Grind Area [45]: Feral Scar Vale (Feralas)
Happy Loot: 14slot bag! Cortello's Riddle quest, starts in one of the ships in Stranglethorn Vale for the end of the Bloodsail Buccaneers line of quests.
Level 46-50:

Tanaris [Gadgetzan, Steamwheedle Port]
The Hinterlands [Aerie Peak]
Instance: Zul'Farrak
Instance: Maraudon [49]
Instance: Temple of Atal'Hakkar [50]
Grind Area [47]: Undead in Western Ashzara (Azshara)
Grind Area [47]: Dunemaul Compound (Tanaris)
Grind Area [47]: Elementals/Golems around The Cauldron + N of it (Searing Gorge)
Elemental Leatherworking Supplies
Level 50-55:

Searing Gorge [Kalaran Windblade]
Blasted Lands
Un'Goro Crater [Marshal's Refuge]
Felwood [Emerald Sanctuary]
Burning Steppes [Morgan's Vigil]
Instance: Temple of Atal'Hakkar
Grind Area [50]: Deadwood Village (Felwood)
Grind Area [51]: Ruins of Eldarath (Azshara)
Grind Area [52]: Dreadmaul Rock (Firegut Ogres - Burning Steppes)
Grind Area [52]: Legash Encampment, Thalassian Base Camp, Ursolan (Azshara)
Grind Area [52]: Jaedenar (Felwood)
Grind Area [52]: Sorrow Hill (Western Plaguelands)
Grind Area [53]: Ironwood Trees in northern Felwood
Grind Area [54]: Temple of Arkkoran (Azshara)
Grind Area [55]: Jadefire Run, Felpaw Village (Felwood)
Level 55-60:

Winterspring [Everlook, Starfall Village]
Western Plaguelands [Chillwind Point]
Eastern Plaguelands
Instance: Blackrock Depths
Instance: Blackrock Spire [60]
Instance: Stratholme [60]
Instance: Scholomance [60]
Grind Area [55]: Felstone Field, Dalson's Tears, The Writhing Haunt, Gahrron's Withering (Western Plaguelands)
Grind Area [56]: Northridge Lumber Camp (Western Plaguelands)
Grind Area [56]: Corin's Crossing (Eastern Plaguelands)
Grind Area [56]: The Pillar of Ash (Burning Steppes)
Grind Area [56]: Winterfall Village (Winterspring)
Grind Area [57]: Blackrock Stronghold (Burning Steppes)
Grind Area [57]: Ice Thistle Hills (Wintespring) - Rugged Leathers
The following guide is recommended as comprehensive leveling guide and leveling from Level 60 to 70: WoW Alliance Guide.

Enjoy! Feel free to post additions or comments to this Grinding Guide for Alliance.

http://www.grinding-guide.com/WoW-Grinding-Guide-Alliance

Grind Area [50]: Deadwood Village (Felwood)
Grind Area [51]: Ruins of Eldarath (Azshara)
Grind Area [52]: Dreadmaul Rock (Firegut Ogres - Burning Steppes)
Grind Area [52]: Legash Encampment, Thalassian Base Camp, Ursolan (Azshara)
Grind Area [52]: Jaedenar (Felwood)
Grind Area [52]: Sorrow Hill (Western Plaguelands)
Grind Area [53]: Ironwood Trees in northern Felwood
Grind Area [54]: Temple of Arkkoran (Azshara)
Grind Area [55]: Jadefire Run, Felpaw Village (Felwood)