Where can you find support/status for appengine if you're not a Premier Account?

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We're a non-Premier account holder on appengine. We've experienced a couple of episodes where we consistently get 500 errors for about a day and then things clear up. During these episodes (one is happening now), we check the Google Group, the System Status page, and Stack Overflow, but nothing is ever mentioned while we're experiencing the problems. After the fact, we sometimes see a mention that Google was experiencing some problems around the same time we were (I forget where I saw this mentioned, though).

There doesn't appear to be anywhere to ask if others are experiencing problems except perhaps in the Google Group. The group seems to have a very low volume of traffic and seems almost unused.

The real questions are these: Is there any way to get support from Google without having a premier account? Is there any way to ask if Google is experiencing issues that might be affecting our app(s). Is there any way to ask others if they are experiencing similar problems.

I've looked and looked, but can't find any place to get this kind of information. Is it hiding in plain sight? Any help finding it is very welcome.