iGoogle's Retiring - How it affects Gadgets for Sites
Quoted from Google:
As we announced on the Official Google Blog, on November 1, 2013, we will be retiring iGoogle. To ensure a smooth transition for your users, you may want to update your gadgets and direct users to your site or offer the ability to export user data. You may also consider launching your application on one of our other platforms.
Similarly, we will stop accepting new gadgets after July 31, 2012 - but you will be able to update and maintain existing gadgets, as before.