I dont really like the font used in the title 'Database Administrators' at the top. It seems out of place and very typewriter-ish.
Also, the logo, is good, just not awesome, I think. Please excuse if you all think otherwise. To me, it looks like a database covered in honey!
I have really loved the designs of some other SE sites like
- https://softwareengineering.stackexchange.com/
- http://cooking.stackexchange.com/
- http://area51.stackexchange.com/
and by the standards we set there for ourselves, I think this one is a little behind.