Wlandscape is a Java application that displays the Wlans in a specified area on a street map making it so much easier to identify possible hotspots that can be used to access the Internet. The software needs some batch file editing before it can be used, nothing serious though.
The file javax.comm.properties has to be moved from the Wlandscape directory into the lib directory of the JRE installation of your computer. This can be found in the Program Files folder normally. After copying this library the run.bat file has to be edited to point to the correct installation of the Java Runtime Environment on your computer.
Finally Wlandscape can be started by double-clicking on the run.bat file. The best approach would be to search for Wlans by address. You can enter city, zip and street information and let Wlandscape search for hits. If more than one possibility is found it will ask the user to pick one result of the list.

What I like is that Wlandscape supports automated tracking by GPS and that Netstumbler information can be imported as well.

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[...] especially if your Notebook’s wireless card is not supported by the usual applications like Netstumbler or Easy WiFi [...]
[...] especially if your Notebook’s wireless card is not supported by the usual applications like Netstumbler or Easy WiFi [...]