The business card idea makes Schacht wonder whether the tiny balls might be added to a birthday card to reveal a surprise message when the card is held over birthday-cake candles.
Customers choose their card design, personalize it with a message or their own images and then outsource the printing, addressing, stamping and mailing to the Punch Street team.
Mobile users can also be duped through so-called "smishing" -- a combination of the words SMS and phishing -- where a user receives a text message asking for personal information like a credit card number, e-mail address or social security number.
For example, the 2009 Report Card found that 27% of colleges and universities were incorporating a message on sustainability in their admissions and interview process.
It sends a message to your pager every time your credit or ATM card is debited, your front door unlocked or your television set or any other consumer appliance switched on.
Author Orson Scott Card gave us an Internet-like network 15 years ago in Ender's Game, a novel in which message boards were used as propaganda vehicles to take over the world.