Are you running your own DNS server(s)? If so, manually add googles IP to your DNS lookup table.
You can always remove it later on.

(Or, if you are just using your ISPs DNS server(s) then put it in your hosts file. Its just easier to modify a couple of DNS servers rather than updating all your workstations hosts files)

While you are at it...
redirect those 3 domains I put in my post at the top of the last page to either 0.0.0.0 or 127.0.0.1