In reply to Doug:
Hi Doug,
As mentioned QR codes are a bit old fashioned, some smartphones can read them off the camera but older models need an app to scan them and that's a pain. I use them on the posters for my via ferrata app in the local tourist offices, when it worked it worked well, but for some they didn't have an app or the right phone. In that case they could just search the app store/google play etc. That's not an option for you so you would need to add the website as well, or users may feel put out if they cant find the site.
In terms of making them, most of the free online QR code makers work fine, just make you check them first and that you save them with a easy to use name so you know which links to which site.
Cheers Rob