How to create QR codes using Google Charts
I was tinkering with auto generating QR codes a while ago when I discovered (to my surprise) that the Google Charts API actually had a pretty slick option to generate this on demand.
All you have to do is to pass the url or text that you wish to be encoded to the Charts API. For example, the link to create the image above is:
http://chart.apis.google.com/chart?cht=qr&chs=500x500&chld=H&chl=http://tumblelog.jauderho.com/
I would be interested in learning more where others are using QR codes (or similar codes such as Microsoft Tag)
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