The Google Earth web plugin is currently only available for Windows. If you can't install the required plugin, you may download the KMZ file for Google Earth desktop version (free download for Windows, Mac and Linux on earth.google.com).
Source of geographical data: GeoGratis
Source of electoral data: Elections Canada
Read more on how I made this map on my blog.
Hint: double-click on placemark icons to zoom in quickly.
Explore federal ridings in an intuitive manner.
Zoom on regions of interest.
Get information about candidates and past elections (2004 and 2006).
For better performance, download the KMZ file for Google Earth.