Despite guidelines, assigning Net domain names is tricky

An Internet cafe and post office is seen February 21, 2007 in Ushuaia, Argentina. About 250 country-code domain names exist for various countries or territories around the world, used as suffixes in the Internet addresses crucial for computers to find Web sites and route e-mail. Outside the United States, these suffixes are often preferred over the global ".com" as a source of national pride. (AP Photo/Nick Jesdanun)

(AP) -- Argentina's Web sites end in ".ar," while Germany gets ".de" - for Deutschland, as the country is known in German. Then there's ".aq" for Antarctica, a land with more penguins than computers.