Here's a fourth.

If you routinely collect business cards but then have trouble remembering who those people are or why they're important, check out .

This intriguing app (released for iOS last year and ) works like this: Instead of asking a new contact for a business card, just hand over your phone and ask him/her to tap out their vitals: name, Twitter address, e-mail, phone number, and the like. (You can also enter their information yourself or pull it from your address book, if available.)

The app can also snap a photo, ostensibly part of the "fun" of the information-sharing experience -- though I suspect most people will balk at having their picture taken, especially if you've just met them.

When all is said and done, Evernote Hello can shoot your own information to your new associate, thus saving you from having to share your own business cards.