“Students for a free Tibet” keep a list at
http://noluv4google.com/article.php?id=800
“Here is a list of alternative products to Google. Our preliminary research shows that these sites have not engaged in partnerships with the Chinese government to spread propaganda nor enable censorship.”

Also check their evil-reminder firefox extension that changes the google logo with an image that can make you think every time you use google.
see http://flickr.com/photos/phauly/100734714/