en.blog.orkut.com/

This seems like it could develop into something big ;)

This blog and the portugese blog are already in "Google's blog" ;-)

On a related note, Google launched the Gmail Blog last night.
gmailblog.blogspot.com

They just replaced the "News" section, which they stopped updating some time ago (new features that were announced on the official google blog didn't even make it there), with the new official blog and the link now reads, "What's New"