The New York Times wrote this piece about how countries are marketing their extension.
One excerpt from the article : With a few exceptions, Internet addresses that end with country codes have failed to catch on with consumers, and “.com” remains the suffix of choice for marketers seeking to establish their Web credentials. Now companies that market country codes like “.me,” “.tv” and “.co,” for Colombia, are stepping up their efforts to sell them worldwide.
Here is the link http://www.nytimes.com/2011/02/07/technology/07dotco.html