I’m attending a big networking event and a gentleman walks toward me from across the room. He tells me his name, we shake hands and chat for a few minutes about a question he has. I want to keep in touch and can think of another professional I would like to introduce his business to and so I ask for a card. We exchange cards, smile, shake hands and he walks away. I look down at the card and then I see it: email@example.com. My head drops.