These are High Definition QR Codes and they can be printed or display on screen. They can be scanned with the mobile phone and send the user to a specific URL, a Special Offer, a Google Map, a Facebook Page, your Contact Information, an Event Page, a Contact Form to collect data, a BBB Link, a Coupon, the possibilities are endless. Once you receive the High Resolution QR Codes you can use on Business Cards, Letterhead, Print Ads, Postcards, Invoices etc.
If you want to reference the links, I need the reference from you first
URL one (Facebook Page): http://yourfacebookpage.com