The Brazilian classical guitar site, Guitar Co-op, has a remarkably frank and comprehensive interview with the last of the guitar lions, the accomplished John Williams.
Much of the conversation, with Stephen Goss and Marcelo Kayath will be of invaluable technical interest to guitar players.. But John is an astute observer of musical habits and there is much to enjoy in the four lengthy segments of their chat.
You should bookmark the site if you love the guitar. There is nothing like it online.