I saw an article about backing up your blog on a Google Blog. Kudos to the author! I'm going to reproduce the important stuff here. I've been desperately searching for a way to backup my data. It's extremely irritating to lose it. Although this doesn't make it any easier to restore the data, at least you will have a copy of it. Perhaps someone can come up with some useful utility for doing a backup properly.

If you have a blog hosted on Blogger and you've upgraded to the new version, there's an easy way to backup your blog.

This page lists the latest N posts from the blog:

http://blogname.blogspot.com/search?max-results=N

Instead of N, type the number of posts. If your blog has less than 1000 posts, you can save this page:

http://blogname.blogspot.com/search?max-results=1000

To download all the photos uploaded to your blog, DownThemAll comes to the rescue. The Firefox extension lets you download all the files with a certain extension from the current page, so it's a good way to download all the images from the previous listing.

There's also a way to get all the posts in an XML feed. This is a better format if you intend to import it in a database.

http://blogname.blogspot.com/feeds/posts/default?max-results=1000

The number of posts can be easily obtained from the dashboard.

You can also backup the comments:

http://blogname.blogspot.com/feeds/comments/default?max-results=1000