Austria

Cities

 * Vienna
 * WLAN through eduroam and u:connect
 * The Vienna University Computer Center (ZID) provides WLAN (via eduroam oru:connect) in numerous lecture halls, libraries and other public areas. With that, you can use the internet with your notebook without great configuration complexity. You can get more information and a location list (German only).
 * I've also found u:connect WiFi in other places not listed on that page given above. For example, at the restaurant on the top of the Albertina museum.
 * Gratis WLAN in Wien - Der Wireless-Lokalführer (German only) is a large list of free WLAN hotspots in Vienna; it also has a lot of information on places outside Vienna.