On December 17th, Blogger removed my last blog of almost 2 years duration and all my work. The reason is:
“Blogger’s spam-prevention robots have detected that your blog has characteristics of a spam blog. (What’s a spam blog?) Since you’re an actual person reading this, your blog is probably not a spam blog. Automated spam detection is inherently fuzzy, and we sincerely apologize for this false positive.
We received your unlock request on December 17, 2009. On behalf of the robots, we apologize for locking your non-spam blog. Please be patient while we take a look at your blog and verify that it is not spam.
Find out more about how Blogger is fighting spam blogs.”
So I am waiting to hear back from them whether they will restore my blog. But I have found out about the dangers of having a free blog without back up. So I would strongly recommend that folks in the blog world consider switching to WordPress and/or backing up their blogger site using wordpress. Maybe this will not happen to you.