There recently have been written a lot of French books on the Corsican mob. Search for authors like Jacques Follorou, Christian Lestavel and Thierry Colombie. Most of the books are on the activities of the Corsican mobs in more recent times, not so much on the French Connection. "Les Parrains Corses" by Jacques Follorou however is a book that gives a good historic as well as contemporary overview of Corsican organized crime. All of the books are in French though.

Even though they aren't as important anymore in the international heroin trade as they used to be in the days of the French Connection, the activities of several Corsican clans are extremely entrenched on the island and in the South of France. This year the murder rate on the island was a bit down (save for a local official that got killed), but 2008-2013 saw quite a lot of casualties due to widespread vendettas between criminal clans. In Marseille the Corsican mob is still the most powerful and well-entrenched form of organized crime. They work a lot with local North African (Algerians for the most part) gangsters over there. For instance Marseille's most well known Algerian crime boss Farid Berrahma was killed by several locally based Corsican mobsters over a business dispute. The Hornec family -an extended Paris-based organized crime clan of settled Yéniche travellers who were often dubbed the "Mafia of Paris"- also had a lot of connections with the Corsicans in Marseille. So even though their international presence has waned, they're still extremely well entrenched throughout the criminal underworld of France.

Have to say Corsica is an extremely beautiful place however and as with all ethnic groups the criminals are a minority. It's safe for tourists and the Corsican people themselves are very hospitable. They're a proud people though, they've historically resented being a part of France and don't like to be called "French" neither do they like being called "Italian". Ethnically they're most likely a mix between Sardinians and Northern Italians (Tuscans for that matter).