Google have silently launched goo.gl URL shortener to public. Until now goo.gl URL shortener was only available in form of Chrome extension and now its available for all.
Google also provides the detailed click analytics and also provides you with a qr code which holds the click data.
for example : you give the url http://cybergyaan.blogspot.com/ and shotened to http://goo.gl/p1a9 and also http://goo.gl/p1a9.qr a two dimensional code which holds the small amount of data used by QR scanners in mobile phones.
With feedburner you can shorten the post URLs with goo.gl hence you can able to see how many clicks on your RSS feeds.