If you are using the MyBrand service, and you're porting your Feedburner account over to Google, there are two things you'll need to do. Google's support for CNAME changes is pretty good, but there's a glitch in the system.In order to ensure that your feed is still live, click on your RSS icon (on your website). If you see an error, it's likely you'll have to reactivate your MyBrand service. This video shows you how.NOTE: I made this after Matt Dickman posted his video about the Feedburner --> Google migration.