Subject: Driving distances between European cites

I was wondering if anyone knew of a good site (or some guide book) where I could find driving distances and approximate drive times between European cities. I thought the Rick Steves guides did this but when I checked it is for the Eurorail travel times. I am planning on driving from Brussels through Germany (Black Forest, Rhine area) to Salzburg and then Vienna. On the map that I have (Michelin Europe #705 National) this looks like a pretty ambitious trek for 2.5 weeks. I was also waffling about checking out Bratislava in Slovakia. Has anyone here ever been? Is it worth the detour? Any info would be appreciated.

Thank you. E. Young, Ottawa, Canada

Mod's note from Linda: Here are a few route planning sites: