USA

Best Dang Games - http://www.bestdanggames.com/index.html
BoardGames4Us - http://www.boardgames4us.com/
Board Game Guy - http://www.boardgameguy.com/
Boards & Bits - http://www.boardsandbits.com
Cardhaus - http://www.cardhaus.com/
CLS Games - http://www.clsgames.com
Cool Stuff Inc - http://www.coolstuffinc.com/
Funagain - http://www.funagain.com
Game Surplus - http://www.gamesurplus.com/site/index.cfm
GatePlay - http://www.gateplay.com/
Get Your Fun On - http://www.getyourfunon.com
Griffin's Toy Chest - http://www.griffinstoychest.com
Miniature Market - http://www.miniaturemarket.com/
Noble Knight Games - http://www.nobleknight.com/
NWS Online - http://yhst-12000246778232.stores.yahoo.net
Rogues Gallery - http://www.roguesgallerytx.com
Sci-Fi City - http://shop.sci-fi-city.com/
Thought Hammer - http://www.thoughthammer.com/
Time Well Spent Games - http://www.timewellspentgames.com
Toys 4 USA - http://www.toys4usa.com
Tyche's Games - http://www.tychesgames.com
Wargame Depot - http://wargamedepot.com

Australia and New Zealand

Australia
All About Games - http://www.allaboutgames.com.au
Caterpillar Games - http://www.caterpillargames.com.au
Games Paradise - http://www.gamesparadise.com.au/
Milsims Games - http://www.milsims.com.au/
Mind Games - http://www.mindgamesalbury.com
Unhalfbricking Games - http://www.unhalfbricking.com

New Zealand
Mainly Toys, Auckland - mainlytoys@educationalexperience.co.nz
The Game Gate - http://thegamegate.co.nz/
Seriously Board - http://www.SeriouslyBoard.co.nz

Belgium

Boardgameshop.eu - http://www.boardgameshop.eu/
Time2Game - http://www.time2game.be/

Brazil

See info about Brazil shipping concerns at http://www.boardgamegeek.com/geeklist/60997/item/1471041#item1471041

Also see useful info in yohanleafheart's profile: http://www.boardgamegeek.com/user/yohanleafheart

Canada

Board Game Warriors - http://www.boardgamewarriors.com/
Craving for a Game - http://www.cravingforagame.ca
Espace Jeux - http://www.espacejeux.tv (in French)
Fun Games Cafe - http://www.fungamescafe.com
German Boardgame Company - http://www.germangames.com
Godboma - http://www.godboma.com
J&J Superstore - http://www.jjcards.com
Starlit Citadel - http://www.starlitcitadel.com/games/

See also baconcow's Canadian Board Game Retailer List - 2012

Chile

Juegos de Mesa - http://www.juegosdemesa.cl/tienda
zmart - http://www.zmart.cl/scripts/prodList.asp?idCategory=219

Denmark

Boardgamer - http://www.boardgamer.dk/
Fantask - http://www.fantask.dk
Faraos Cigarer - http://www.faraos.dk/Games/Vare/Br%E6tspil
Papspil.dk - http://www.papspil.dk

Estonia

Fortuna Games - http://www.fortunaboardgames.com/

Finland

Fantasiapelit - http://www.fantasiapelit.com (in Finnish, http://www.fantasiapelit.com/index.php?lang=en&main=ajankohtaista for partial English)
lautapelit.fi - http://www.lautapelit.fi - (in Finnish?, http://www.lautapelit.fi/tpl_site_01.asp?lang=3&sua=1&q=y&s=38 for English)

France

Ludibay - http://www.ludibay.net (in French, http://www.ludibay.net/index.php?language=en for English)

Germany

CosimShop - http://www.cosimshop.de (in German)
Magierspiele.de - http://www.magierspiele.de (in German)
Spiele-Offensive.de - http://www.spiele-offensive.de (in German)

gruescher also suggested http://www.amazon.de

Greece

Far More Than Games - http://www.farmorethangames.com/

Hungary

Compaya - http://www.compaya.hu (in Hungarian)

Indonesia

Timewalk - http://www.facebook.com/timewalkers

Italy

Giochi n Scatola - http://www.giochinscatola.it/catalog/
Uplay.it - http://www.uplay.it

Malaysia

Boardgame Cafe - http://www.boardgamecafe.net/store/
Imagine Games - http://web.mac.com/imagine_newszine/Site/Home/Home.html

The Netherlands

The Summoner - http://www.summoner.nl (in... Dutch?)
Gezelschapsspellen - http://www.gezelschapsspellen.com (in... Dutch?)
The Game Freak - http://www.thegamefreak.nl

Norway

brettspill - http://www.brettspill.no/
outland - http://www.outland.no/
spillskrinet - http://www.spillskrinet.no/

Poland

Rebel.pl - http://www.rebel.pl/

Portugal

Loot - http://www.loot.pt (in Portuguese, http://www.loot.pt/P/language.cgi?language=en for English)

Romania

Board Games - http://www.boardgames.ro
Regina si Nebunul - http://www.reginasinebunul.ro

Russia

Hobby Games - http://www.hobbygames.ru/
igroved - http://igroved.ru
mosigra - http://www.mosigra.ru
nastolkin - http://www.nastolkin.ru/oplata-dostavka
triominos - http://triominos.ru

Singapore

Board Game Lifestyle - http://www.boardgamelifestyle.com

Spain

Planeton Games - http://www.planetongames.com

Taiwan

Dolphin Boardgamer - http://www.boardgamer.org (partial English)

Ukraine

Ukrainian Boardgames Shop - http://boardgame.com.ua/

United Kingdom

Board Game Extras - http://www.boardgameextras.co.uk/
BoardGameGuru - http://www.boardgameguru.co.uk
Brascogames - http://www.brascogames.webs.com
Chimera - http://www.chimeraccg.co.uk
Dicebay - http://www.dicebay.co.uk
The Games Player - http://www.thegamesplayer.co.uk
Green Knight Games - http://www.greenknightgames.co.uk
Heron Games - http://www.herongames.com
Infinity Games UK - http://www.iguk.co.uk/bgg.aspx
Land of Games - http://www.land-of-games.co.uk
Leisure Games - http://www.leisuregames.com/
Shire Games - http://www.shiregames.com