I think this simple informations (but very useful) should know every blogger.
Full site feed:
Atom 1.0: http://yourblog.blogspot.com/feeds/posts/default
RSS 2.0: http://yourblog.blogspot.com/feeds/posts/default?alt=rss
Comments-only feed:
Atom 1.0: http://yourblog.blogspot.com/feeds/comments/default
RSS 2.0: http://yourblog.blogspot.com/feeds/comments/default?alt=rss
Label-specific site feed:
Atom 1.0: http://yourblog.blogspot.com/feeds/posts/default/-/labelname
RSS 2.0: http://yourblog.blogspot.com/feeds/posts/default?alt=rss/-/labelname
Individual post comment feed:
Atom 1.0: http://yourblog.blogspot.com/feeds/postId/comments/default
RSS 2.0: http://yourblog.blogspot.com/feeds/postId/comments/default?alt=rss
Resource :
Blogger Help :http://help.blogger.com/bin/answer.py?hl=en&answer=97933
File Under : feeds