Expand your mind and donate to the hungry at freerice.com. It's at least a more worthwhile procrastination tool than most internet time-sucks. I like to donate a thousand grains a day, while trying to beat my personal best vocabulary level score. It's also a fun exploration of the nature of the English language, since even when you've never heard of a word in your life, it's often possible to guess the right meaning from the sound of the word. (Greek and Latin roots help, too.)