This isn't nearly ready for prime time yet, but:
I'm working on an experimental mirror site for ROCR. It will be on http://xepher.net/~rocr and while simpler than the Keenspace site, it will at least have automation so I will once again be able to show people the latest strip when Keen is down. I'm in close contact with the guy who writes the PHP script used, and if enough of my suggestions are taken up, I may switch ROCR over to a PHP-based system entirely.