Paperless business cards are great for the environment. In addition to be a cool business card alternative, they don’t leave any waste behind, and consumers can’t exactly throw them away. And by going digital, you will never run out of business cards when you’re networking. Haystack is an app you can use to create and share an electronic business card. With this app, your employees can share their cards in a matter of seconds. Even without the app, consumers can receive your employees’ digital cards. If any of their contact information changes, the app automatically updates the necessary detail on people’s devices.