Regarding my perspective on this issue, there has been a lively debate only recently on multicultural citizenship, the ‘politics of recognition’, the rights of minority cultures, the desirability of group-differentiated rights and so on in (Western liberal) political theory. This reflects that associated conflicts came to the forefront of politics in many parts of the world. Although groups are recognized in the constitution and political practice of many countries, this has happened in a theoretical vacuum. I believe there are few well-thought theories yet, and Will Kymlicka is certainly the author of one of them. I have been planning to write my final thesis on his theory and spend quite some time reading his books. His homepage is a great source of information.