Here's a link to the TuttoCitta site with a great map if you're looking for a specific address in Italy. Just type in "Firenze" (or another city name) in the "Citta" field, and the address you're looking for in the "indirizzo" field and hit the "CreaMappa" button. You'll get a great, zoom-able map. It's a big help when you're new to a city...
Ellen