In case you haven't been celebrating the glory of burgers all May, aka National Burger Month, be sure to celebrate tomorrow: May 28 is National Burger Day (because the Internet says so)! Here are some special burger deals going on tomorrow:

• Burger Lounge, West Hollywood: One free burger per customer from 10:30 a.m. to 11 p.m.
• Li'l Woody's, Seattle: One free burger per customer from 2 to 5 p.m.
• BGR The Burger Joint, San Diego: One free burger per customer from 11 a.m. to 1 p.m. and 5 p.m. to 7 p.m.
• The Liberty, Charlotte, NC: Two-for-one burgers all day
• The Burger Boss, Chicago: Free milkshake if your last name is Burger, Berger or Boss
• Plan B, multiple locations in CT: Free mini burgers when you sign up tomorrow on their website
• Go Burger, LA and NYC; and BLT Burger, NYC: Special Burger Days Burger with bacon, onion jam, and melted sharp cheddar for $4
• Max & Erma's, multiple locations nationwide: Free slider with purchase of beverage

If you're firing up the grill for Memorial Day and need inspiration, check out some of our favorite burger recipes and our top ten tips for better burgers.

[Image: Robyn Lee]

About the author: Robyn Lee is the editor of A Hamburger Today and takes many of the photos for Serious Eats. She'll also doodle cute stuff when necessary. Read more from Robyn at her personal food blog, The Girl Who Ate Everything.