Kampana is a big Bouzouki Manufacturer from Thessaloniki, but they have posted also on their website some valuable bouzouki lessons. They have also something that not many people who made lessons tought about. They made some exercise lessons to improve the playing technique, and there are not few. You can find bellow the links to the pages where I posted their lessons divided by exercisez and songs. I hope it will be helpfull and not forget to thank Kampana for the great lessons. You can also visit the Kampana website here: http://www.kampana.gr