QR Code Generator

This Lifehacker article explains how one can make use of the Google QR API by appending your URL to this address:

https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=

To make it a little simpler, I cobbled a QR code generator to, well, quickly generate a QR code; just plug in your web address (no need for the http://) and away you go!

Edit 14 May 2014 There's this fancy generator from Ventipix too