Just by chance I've read askubuntu's [What topics can I ask about here?](http://askubuntu.com/help/on-topic) site and found some good ideas there.  
Can we also improve our [What topics can I ask about here?](http://superuser.com/help/on-topic)

They've a "Information needed when creating a question" part:

> - Apply as many tags as makes sense. We get a lot of traffic so it's in your best interest to spend a few minutes making your question show
> up the right section.
> - If a question involves any hardware issues, provide relevant information (Eg: If your question is about a graphics issue, provide
> video card type, video drivers and anything related to it)
> - Questions should show as much information about your problem as possible. The more work and time you put on your question, the easier,
> faster and better the answers will be.
> - Make sure the Question's title shows what the problem is about. Asking "Ubuntu has problem" is not the same as "Unity not loading
> after installing Ati drivers". Be specific about it.
> - Remember that we can only help you using the information you have provided on the question. If your question lacks information, a
> solution will take more time to arrive.

Many of these would be useful on our site too.