http://status.blogger.com/ も落ちてるから詳細は分からないが，最後のエントリーは下のような記事になっている。 によると，
We are currently experiencing some problems with Blog*Spot. A percentage of blogs are completely inaccessible. For others, you may need to reload a few times before you connect to a web server that will serve them. We anticipate things will be calmed down within the hour.
Update, 5:20PM: Blogger and Blog*Spot should be fully operational with the exception of one of our file servers. This means a percentage of blogs will be unpublishable and inaccessible. We are currently waiting for a lengthy disk integrity check to complete on the file server. There may also be transient delays serving blog pages while our load balancing evens out.
Update, 8:00PM: The Blog*Spot web servers are coming back online with connections to the file server that was out for most of the evening. (Its disk is totally okay, btw.) So, within the next 10-5 minutes everything should be completely back to normal.
Again, super major apologies for this.