Maybe I'm the last person to know about this, but my friend just told me about the Google url shortener. It works like other shorteners, you just paste in the URL you want shortened so it can easily be shared, emailed, or tweeted. But leave it Google to take it a step further. Goo.gl also provides analytics and a QR code for each link. Login to your Google account, enter the URL and follow the Details link to get to the QR code and the analytics. Nothing they are doing is new, but it's all in one place and the analytics for the QR code are easy. I love it!