I don't know if you have seen this movie. I have. It is not really my favorite movie as I am not a Tim Burton fan but I like the website:

http://coraline.com/


I like the idea of the next one. It is a website on which people can describe their dreams. The design is also very appealing:
http://www.dreamgrove.org/


I was born and grew up in Berlin. The next website is representing a bit of Berlin's culture: trashy, multicultural and Kebap (sorry, it's in German).
http://mustafas.de/