Google.org has been redesigned today. They also added a new blog for their philanthropy site.

Google.org's new look:
http://farm2.static.flickr.com/1122/700831819_faeef77e22_o.png

New Blog:
http://blog.google.org/

Thanks for the address of the blog, I've found http://googleorgblog.blogspot.com/ but now there is a redirection