I (and a friend of mine) cloned digg/reddit (it's something like a mix between the two) about 4 years ago, as there was nothing alike in the Italian market. It

I (and a friend of mine) cloned digg/reddit (it's something like a mix between the two) about 4 years ago, as there was nothing alike in the Italian market. It worked very well and the product (called Oknotizie, http://oknotizie.virgilio.it http://oknotizie.virgilio.it) did a successful deal with Telecom Italia.