More geo: a heatmap overlay technique and another geocoder as well as some free vector clipart:
The GeoIQ platform empowers you to go beyond pushpin data displays to add geographic intelligence to your maps. With GeoIQ, your users can finally find, use, and share the wealth of untapped geographic data.
MaxMind – World Cities with Population
Product Summary: Includes city, region, country, latitude and longitude. This product doesn’t contain any IP addresses. It’s simply a listing of all the cities in the world. For IP to city mappings, see our MaxMind City product.
Vecteezy is an index of Free Vectors available for download by some of the best designers around the world.