I've spent a lot of time in the past thinking about logos. One thing I realised is that when you have a tall logo, it can have a negative impact. A tall logo would push down more content below the fold, taking up unnecessary space.
Also, whilst there is "world" in the site name, the focus is not world, it is databases. Consequently, I think a symbol that emphasises that part would be better. This site is nothing to do with the world, but rather the world of Access.
Having said all that, I appreciate your participation in the thread. Thrashing things out gives different insights.