Extra Thing 8 (week 13) : who shot QR?

QR codes are appearing everywhere.  I downloaded a QR scanner onto my phone and I have now started zapping away.  I haven't yet scanned anything where it was actually useful but then I haven't had the scanner long enough.  I created a QR code for our library (although one of the presentations on QR codes said that they should link to active pages and not just a web link!) and it worked.

I think this is definitely worth exploring especially for providing links to ebooks and online guides etc.  Something to add to my TeuxDeux list!