Though you can easily redirect Blogger Feeds to FeedBurner now, this has a side effect - you will see some warnings when you submit the Sitemaps file (xxx.blogspot.com/atom.xml) to Google Webmaster Tools. (see screenshot) The following Sitemap warning messages are shown in the Google WebMaster Tools control when using Blogger feeds with FeedBurner: Line: 2 Invalid XML: too many tags - Too many tag