Google mirrors/datacenters?

[JohnKelly]

Is there an up-to-date list of Google mirrors and/or datacenters, where you can view "pre-dance" results?.

I've got a list of several, but I have no idea how current they are:

www2.google.com
www3.google.com
66.102.9.104
216.239.57.99
66.102.9.99
64.233.161.98
64.233.161.99
64.233.161.104