You can keep tabs via his new Facebook page: https://www.facebook.com/PeterBrockDesigns
Then there's his other Facebook page for Datsun stuff: https://www.facebook.com/BRE.Datsun
And for traditionalists, his site: http://bre2.net/
At his site you can sign up for his e-newsletter. His latest one was sent from my couch. Seriously.
Met him at The Mitty a few years back. Great guy. I asked him about the whole Toyota vs. Datsun thing in C-Production all those years ago, he still loves to talk about it. The recent CM column where he talks about working in clay was excellent.
By the way, we saw Peter and Gayle at Amelia this weekend, and there's a few photos here: https://www.facebook.com/PeterBrockDesigns
It was neat seeing him alongside some cars that came from his pen.