Online dating is booming. According to Jeffrey Hancock, assistant professor of communication and chairman of the Information Science department at Cornell University, one-fifth of Americans use online dating. What does that mean for cupid's arrows? As Hancock discusses on "CBS This Morning," the internet has revolutionized dating, but that doesn't mean the rules of romance have completely changed, nor has online dating replaced in-person dating -- it's just a first step in the dating process. Watch the video below to learn more about what online daters want and to see what Hancock says about older adults and online dating.