While the potential is great, in short a QR Code is a physical link that can be scanned by smartphones or tablets in mobile learning circumstances. The following list from listly user Marianna Talei offers a huge variety of QR resources, from QR code generators to attaching images and hosting QR code treasure hunts.
A blog about individual and community development using new information and communication technologies, especially e-learning, open educational resources, open source, Web 2.0, blogs, wikis, social networking, social bookmarking, semantic web and other social software.