QR Codes, those matrix bar codes that have begun appearing on advertisements, can help you market your meeting. Include a QR Code on your conference collateral, and any attendee with a smartphone (and a QR Code reader app) can scan the code to be directly linked to your meeting's website. Codes also can be put on signage outside breakout rooms to link attendees to a description of each session. They also work well on business cards. Create them for free at qrcode.kaywa.com. Thanks to Sydney Wolf, a student in the Hospitality College at Johnson & Wales University in Providence, for the idea.