So I went out today with my wifi-enabled PDA at 30 locations across the downtown core of Ottawa. My objective was to identify the wireless networks in the area, which would then be placed on a map with further information.
I sniffeed each sample area 5/6 times and wrote the results on paper. Once all the data was gathered I produced a map of the location using Google Maps and Photoshop. Finally, I created the HTML backbone that would provide you with information on each location (imagemap, JS database).
The result:
http://www.maelys.bio/hosting/wifiottawa/
Note: The webpage will not work with Internet Explorer as it cannot properly render .png images (or much of anything else). It does work correctly with Firefox.