10 Websites That Label Their Hamburgers (Menus)

It's a given - your mobile website or app needs the ability for visitors to navigate through all of its features.  Based on the latest design trends, you are highly likely to use the three line "hamburger" menu. Not only does this icon use little space, but since so many other mobile properties use this icon, everyone will instantly know that pressing it should bring up a menu, right?

Many user experience professionals recommend labeling the three lines with the word "MENU" or "SHOP" or "CATEGORIES" or something else to explicitly state what pressing the icon performs. Does labeling the icon matter?