Chad Skelton charts the near-obliteration of the federal Liberal party in British Columbia at the poll level (at the hands of, variously, Tories and New Democrats) using Fusion Tables, and Elizabeth May’s win for the Green Party in Saanich-Gulf Islands. Below are before-and-after maps of Saanich-Gulf Islands:
Chad also mapped Vancouver South, Newton-North Delta, and Esquimault-Juan de Fuca.
Elsewhere, the Guardian maps the British referendum on alternative voting (also using Fusion Tables), which as you can see was pretty thoroughly crushed. The polygons are fully opaque – I’m not sure why. Zoom in to urban areas to see the small pockets of support. Can you pick out Oxford and Cambridge? It’s easier than it sounds.