Replying to what work should you be doing?

recently ive noticed a worrying phenomon, whenever im supposed to be working on an essay or something (usually late on the night before its due) i always end up getting distracted by ns.com, so i was just wondering if this happens to anyone else, and if so what are you meant to be doing
right now i should be writing an essay on the differences in the economies of new england and virginia before 1700, how fun is that?