Here a list from some Comunitys
http://openetherpad.org/Hcpzc4HD46
or:
http://openetherpad.org/ep/pad/view/Hcpzc4HD46/latest
US Worlds
Anvil Rock - 4chan/vg/, FACEPUNCH
Borlis Pass - OMFGcata
Yak’s Bend - Yogscast, GW2 Guru, GameTrailers, Kinda Ferocious, ZAM
Henge of Denravi - NeoGAF, Guild Wars Reporter
Maguuma - MMORPG.com, Aureus Knights, Knights of Eminence, Better Late Than Never, Sages' Lost Intrigues
Sorrow’s Furnace - (DAoC Vets), VexX Gaming (PvP), Hearts of Chaos (PvX),GuildMag, Kabal, GWDen.com, Arena Junkies
Kaineng - (Asian Guilds x1)
Jade Quarry - PVP, Decisive Action (PvP)
Fort Aspenwood - RMA Clan (PVP), Penny Arcade (SE++)
Ehmry Bay
Ferguson’s Crossing
Darkhaven - Reddit, Oceanic alt, Almost Famous (PvP), Gamebreaker, GuildWars2Forum.com
Vasburg - joO Binder (PvP)
Eredon Terrace
Crystal Desert - (SE Asia Guild x1), forums.hardwarezone.com.sg,
Tarnished Coast - Roleplaying, The Gentlemen's Club, rpg.net
Steamspur Mountains
Blazeridge Mountains - The Gaming Ent
Isle of Janthir - Boons & Conditions
Sea of Sorrows - (Oceanic) SomethingAwful, Downunder, The Australian Cybergamer, Harlequin, Aurora Australis, La Hermandad, Yakisoba, Aggroculture
Deldrimor - GuildWars2-Online.com (Spanish Speakers) / Latin America
Scavenger’s Causeway
Moladune
Eternal Grove - Sea of Stars & Star Onions, Tribe Gaming
EU Worlds
Kodonur
Gandara - GW2guru, (Futilez (PvP), (UK Guild x1)
Kodash - guildmag.com
Blacktide - (Russian Guilds x2) (Polish Guilds x2) (Dutch Guilds x2), 4Gamers.be, GoHa.ru, guildwars-2.ru, guildwars.pl, guildwars2.com.pl
Istan - MMORPG.com, Sweclockers, Ragnarok, JV.com (FR)
Vabbi - 4chan/vg/, mmorpg.pl
Kourna - gw2.fr
Fissure of Woe - (Italian Guilds), (Romanian Guilds), SomethingAwful
Underworld - (Portugese Guilds x4)
Ring of Fire - The Bulgarians (PvP), FACEPUNCH
Far Shiverpeaks - (Dutch Guilds x2) (Nordic Guilds x8), GW2nl.nl, guildwars2.no, gw2sverige.se, Guildwars2.dk, Ragnarok Of Primordus, Tweakers.net
Petrified Forest - Roleplaying
Jade Sea - (Swedish Guild x1), NeoGAF
Desolation - Rockpapershotgun, PCGamer, (UK Guild x1)
Magus Falls - (German Guild x1)
Whiteside Ridge - (UK Guild x1), Reddit, GameTrailers
Fort Ranik - (French Guilds x6) JoL (FR), (Dutch Guilds x1), gw2.variance.hu, 9lives.be
Ruins of Surmia - (Spanish Guilds x3) Israel Community,
Sharp’s Corner - (Spanish Guilds x3)
Aurora Glade - (Spanish Guilds x3)
Riverside - Guild Wars 2 Slovenia, Slovak and Czech community
Elona Reach - (German) wartower.de (DE), gw2.onlinewelten.de, guild-wars-2.net (DE)
Augury Rock - (German Alt), Luna-Atra.fr (FR), univers-virtuels.net (FR)
Abaddon’s Mouth - (German Alt) (Italian Guild x1)