Here are some web sites that you might find useful:

The official Venice Tourist Board: http://tinyurl.com/9jhgm

Venice Card: http://www.venicecard.com/cose_eng.jsp

ACTV - water buses: http://tinyurl.com/7jtxs

Route Maps - water buses: http://www.venice-rentals.com/info/routes.html

Parking: http://www.veniceparking.it/en/index1.htm

Marco Polo International Airport http://tinyurl.com/78fto

Hope that helps, Linda