Questions to ask potential employers

This year, I have come across The Joel Test which is a list of questions to ask potential employers in the tech industry. Here is my slightly modified list of questions with a focus in Web Application development that I have been asking during my interviews in 2009:

1. Which revision control system are you using?
2. Any bug tracking system and internal wiki?
3. Is the site using any specific web framework?
4. How many databases does your main web app connect to?
5. How do developers integrate the latest database changes in their local environment(something similar to Rails' migrate or Django's South)?
6. Does the web team have a Graphics Designer and a Front End Developer?
7. Do you use Balsamiq for mockups?
8. What does the organization hiearchy look like?
9. Why are you hiring for this opening?

Getting responses for the above questions is necessary for me before I can ask even more questions pertaining to the position and the company itself.