The "Joule" program ... http://marnanel.org/joule ... is back up and functioning! And, to judge by my chart, they didn't lose any data (I had a change while they were down and it's showing up now).
If you use Joule, please consider tossing them a few bucks via their PayPal donation button ... from what I read, part of the problem recently was financial (followed by a server crash, I guess), so if folks chip in, maybe Joule won't "disappear" again!