Google chart api introduces QR codes (2D bar codes) support
As usual the guys at google have been busy and released a nice new feature for their (quite new) google chart api. It support 2D bar codes also known as QR codes. Whats more, they even offer a free decoding library for it (Xzing). Big respect googlers to your free APIs

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Hi guys,
in case you hadn’t come across it yet I posted a guide to some of the functions you can call on the google qr api
http://www.cognation.net/QR/Google_api.html
unfortunately there is a real lack of content in the google provided documentation.
Cheers,
Dean
here’s an auto encoder based on google chart api http://omarabid.com/barcode/online_qrcode.php