Now that Google is allowing non-person entities to have Google+ pages, I've created one for TPU. There's not much there right now, but I'll be adding to it soon. There's a link to it in the right side column of this web site.

https://plus.google.com/u/0/109146339717465223830

Update 2019Feb07: Google+ is shutting down, so the TPU Google+ page will disappear soon.