i have talked about this kind of thing before...but another "country" logo that i absolutely love is the bahamas:
duffy & partners. they have a great slideshow of pictures on their website that show a bunch of different marketing pieces - so i would definitely take a look!
and i also just went to the bahamas website and you can see the branding in place. i also like how when you first open the website there is a short animation of the logo - which goes from the logo to the actual islands. check it out!