If you remember a couple years ago, way back in the summer of 2007, Google bought the venerable feed mirror and statistics company FeedBurner. The Big G has since been slowly migrating everyone’s accounts over to their own servers, moving away from the old FeedBurner ones.
Since Google’s acquisition of FeedBurner, Inc. on June 1, 2007, we have been moving the FeedBurner application to Google hardware, software, and data centers. This allows the application to scale and perform like most Google applications and integrate easily with other Google platforms. It also means more reliability in delivering your content, analytics, and monetization, as well as a more secure and consistent experience for your users.
In order to provide an integrated experience and to support the new features we have planned for our feed platform, as well as to improve security, it is necessary for logins to be handled via a Google Account.
Google has set a deadline for you to move your feed now. You have until February 28, 2009 to transfer your feeds. Pro Blog Design has a tutorial on how to do so.
Also, check out Google’s FAQ page for further information.