I saw John James live in 1967, and again at the Islwyn Guitar Club (South Wales) September 2010. He is on top form and has improved over the years. I got chance to chat to him and Lena. He says he wants to do more performing but bookings have dried up over the past few years. He had a box of his CDs for sale. I said there were many people on forums and YouTube asking about him, and how to contact him. Why does he not have a website. He seems wary of letting people contact him, but said he is going to work on setting up a website.... sometime... soon. So if you want to book him, or buy a CD now..... tough luck.
If you look on Amazon for John Renbourn music you'll find 179 different items for sale. Type in John James and the number is zero. Seems a shame.
Meanwhile, John James does read the comments on YouTube and he suggested that as a way for you to send him messages.