Now here's a free web service that could be handy next time you are
traveling. Just type in the address of where you're looking, and wait for the
map to appear that shows the nearby hotspots and their details. It's free to
use, and works with all major web browsers. There is also a downloadable
version for use on your laptop.
http://www.techsupportalert.com/content/global-wifi-hotspot-database-has-100-million-entries.htm