Microcopy is the ninja of online con tent. Fast, furi ous and deadly, it has the power to make or break your online busi ness, to kill or stay your foes. It’s a sen tence, a con firma tion, a few words. One word, even. It isn’t big or flashy. It doesn’t leave a call ing card. If it does its job your cus tomer may never notice it was there.