Fatburger  
   California and Nevada chain.
   http://www.fatburger.net/

Fuddrucker's  
   Offers burgers and steak house platters. Locations in the United States, Canada, Puerto Rico and the Middle East. News and online sales of gift cards.
   http://www.fuddruckers.com/

Wendy's International, Inc.  
   Operate a chain of 6,000 restaurants worldwide. Includes information on restaurants and menus, investor information, and company news. (NYSE: WEN)
   http://www.wendys.com/

Whataburger  
   Texas and Southern US chain.
   http://www.whataburger.com/

White Castle  
   As the first hamburger chain, started in 1921, White Castle has been satisfying craves for over 75 years. The site includes restaurant locator, company history and recipes.
   http://www.whitecastle.com/

Checkers Drive-In Restaurants  
   Double drive-thru, quick service, hamburger restaurants operating under the names "Checkers" and "Rally's Hamburgers". Locations primarily in the southeastern and mid-western United States.
   http://www.checkers.com/

Cheeburger Cheeburger  
   1950's style eatery claiming to have America's biggest burgers. Merchandise and menus. Locations in the eastern United States.
   http://www.cheeburger-cheeburger.com/

Jack in the Box  
   Fun site, from a US fast food chain.
   http://www.jackinthebox.com

Johnny Rockets  
   International chain. Locations, promotions, menu, franchise information.
   http://www.johnnyrockets.com/

Red Robin  
   US chain.
   http://www.redrobin.com/

Steak n Shake  
   Midwest chain.
   http://www.steaknshake.com/

Sonic Drive-In  
   Chain of drive-in restaurants in the United States.
   http://sonicdrivein.com/

Back Yard Burgers  
   Southern and Midwest US chain.
   http://www.backyardburgers.com/

A & W Restaurants  
   US chain specializing in its branded root beer; offers history, menu, store locator, and contact details.
   http://www.awrestaurants.com/

Quick Restaurants  
   European hamburger fast-food chain.
   http://www.quick-restaurants.com

Krystal  
   Southeast US chain. Menu with nutritional information, news and store locator.
   http://www.krystalco.com/

Carl's Jr.  
   Burger restaurant chain with locations across the United States. Information about jobs, an online store offering clothing and gift certificates, and nutritional information.
   http://www.carlsjr.com/

The Ground Round  
   Eastern and Midwest US chain. Includes menu, locations, and specials.
   http://www.groundround.com/

B-Bop's  
   Company overview, coupons, specials and franchise information for Iowa and Nebraska retro-look burger joint.
   http://www.b-bops.com/

Arctic Circle Restaurants, Inc.  
   Western U.S. chain provides information on products and franchise opportunities.
   http://www.arcticcirclerest.com/

Harvey's  
   Canadian chain.
   http://www.harveys.ca/

Hardee's  
   US based national chain offering fast food. Offers restaurant finder, interactive menu, and contact links.
   http://www.hardeesrestaurants.com/

Wimpy Restaurants  
   UK chain. Lists menu and franchise information.
   http://www.wimpyburgers.co.uk/

Wimpy South Africa  
   Fast food chain with outlets across South Africa.
   http://www.wimpy.co.za/

Wendy's Management Group  
   Ohio and West Virginia franchisee for Wendy's Restaurants. Company profile, nutrition information, store locations and details of community activities.
   http://www.wenmanagement.com/

Bullets  
   Offers burgers, chicken, subs, and ice cream at locations in the Southeastern United States. Includes locations, franchise information, and business help center.
   http://bulletsnet.com/

Burgerville USA  
   Fast food chain offering hamburgers, shakes, fresh halibut, fries, and desserts. Kidsville activities page available.
   http://www.burgerville.com/bv.html

Culver's  
   Locations throughout the midwestern United States. Includes menu, careers, and franchise opportunities.
   http://www.culvers.com/

Huddle House  
   Open 24 hours a day, serving meals cooked to order, with locations throughout the Southeastern United States. Includes franchise opportunities and menus.
   http://www.huddlehouse.com/

Hudson's Grill International Inc.  
   Locations in California, Michigan, Wisconsin, and Texas, United States. Includes menu, history, and franchise information.
   http://www.hudsonsgrill.com/

Brazil Fast Food Corp.  
   Owns and operates hamburger fast food restaurants in brazil. (Nasdaq: BOBS).
   http://www.bobs.com.br/

Cheeseburger in Paradise  
   Jimmy Buffett owned chain providing menus, locations, events, and company details. Locations from the east coast to the plains states of the United States.
   http://www.cheeseburgerinparadise.com/