He has a facebook page. Lemme link you, because there's a ton of JB's and he's hard to find.
I wanted to share this from the Moment of Silence page--
This was taken off Candian Goddesses Live journal:
In light of yesterday’s devastating news regarding the death of Kim Manners, I was shocked to hear from my old friend Julie from set-dec today - they all had yesterday off, but almost everyone was at the studio to be together. When I mentioned that we had all heard, and that we hoped everyone was going all right she said a couple of things I wanted to share with you guys.
• everyone (cast/crew/Kripke etc) is aware that we know, and that there have been some amazing things said all over the internet and they are SO grateful to us for that
• Jensen and Jared are trying to get a remembrance thing on the season 4 special features with pictures, behind the scenes stuff, and generally Kim as we the fans never got the chance to see him. As far as Julie knows Kripke & Co are 110% behind the idea
• Robert Singer referred to us as "the greatest fans anyone could ask for, because they make this show so much so much a part of their lives that they bleed when we bleed, cry when we cry, and that is a beautiful thing."
I can't believe everybody had the day off and came to work to be together. That has to be a really great bunch of people to work with.