hmmmm - this is ok:
h**p://www.sendfakemail.com/anonbrowser/
Though page formatting is sometimes screwy
And you can always just prefix whatever web address with:
http://anon.free.anonymizer.com/http://
as in:
http://anon.free.anonymizer.com/http://www.google.com
There were some others out there that you could do this with but I am not sure if they survived the dot com bust...
Hope this helps some...
/JD