Google Launches Navigational Links Worldwide
Each country may have the navigational links in a different order and different options. For example, while one country may have a link for Orkut, another country may not list that link at all. Google is constantly changing the links in the navigational menu to test what works best in that country.
You can view all of Google’s international search sites at this page and by scrolling down to “Visit Google’s Site in Your Local Domain.”