You know what they are, you just might not know the name of them... quick response! They are the little black and white squares that you can scan with your smart phone. Well, they are cropping up in the genealogy world too. There was a class at RootsTech this year by Thomas MacEntee ("Genealogical Uses for QR Codes") that you will want to read. I've heard some division on this subject but at least read the article and then you can see if it makes sense to you. As hard as it may be sometimes to change, technology is moving genealogy forward and will continue to do so. This article in the Deseret News will give you a little more understanding!