If you are someone who uses business cards on a regular basis, then swivelCard could change the networking/customer acquisition game for you. There have been other premium business cards in recent years that have featured USB drives, but they were made out of plastic and looked, well, pretty ridiculous.
These cards are made out of regular business card stock so you get the best of two worlds: giving someone what they expect (a paper business card) and what they don't expect (a super smarty-pants version of a business card). Armed with this card, you'll look smart and will be sure to be the talk of the town.
The cards use analytics so you can see if the card has been accessed by the person you gave it to, which is very sophisticated and practical. Also, the website that the card points to can be updated even after you give the card to someone.