Adrienne's Inventions: Electric Business Cards

Idea:
At conventions there are large amounts of people going to large amounts of booths collecting information and leaving their own.  It would all be so much easier if everyone was issued a digital business card that you could just tap at the booth.  You would be able to give them your contact information if you wish, without writing it all out.  They could send you information automatically.  This would eliminate the piles of papers and brochures, saving trees, money and energy.  The interface could be something very user friendly where you type in your ID or log in at the end of or during the conference to access all the brochures/flyers you requested.  You could then star your favorites or mark them for follow up and even comment along with other convention participants or make connections with people so you could meet in person while the convention is still going on.  The people at the booths could create some interesting or interactive online brochures.  The cards could also serve as networking devices by tapping each other to swap contact information with people you are chatting with.  No more messy piles of business cards.  All the contact information could be instantly put into personal databases where they could be pulled into places like your e-mail contacts list (in a specific convention contacts list) or into things like LinkedIn.  RFID technology could work well in this case.   The largest difficulty would be ensuring information privacy and that it was only exchanged at will.