So this could be a really cool idea or an unmitigated disaster. I've created a map on Google allowing folks to place 'pins' at the locations where Series 3 of the Collectible Minifigures have been sighted. I've placed the first pin in the map to show the Fred Meyer in Seattle, WA where this first reported batch was found.
You should be able to click through to the main map (via the link above) and add pins yourself, so if you know of a location please insert a pin at that location. Anyone who has the URL should be able to add pins, please let me know if this isn't the case.
Our international friends are more than welcome to contribute - this is not a North America only map.
If this works we will have to consider using this approach for tracking future launches.
Minister of Information
Ugly Duck Command Center