World map with data display as a heat map for a web application

Question

Are there any toolkits / libraries which can generate a world map and overlay data in a heat map sort of view (like Google's one on http://www.google.com/insights/search/#geo=&q=wimbledon+-tennis%2Cwimbledon+tennis&cmpt=q)?

I would need to be able to generate and display the map locally, not via some webservice, and would need the output in a browser (i.e. flash or HTMP/Javascript output).

Answer 1

FusionMaps help you create animated, interactive and data-driven Flash Maps for your dynamic web applications. The maps are driven by XML data source and can be integrated with any scripting technology (ASP.NET, ASP, PHP, JSP, CF etc.) and database.