Is there a web application that allows easy creation of heat maps from uploaded data?

Question

I'd like to be able to generate a heat map to visualise some location-based data using some sort of nice simple mashup tool without doing any programming. Assume that I have tabular data consisting of two columns: an address column, and a number column.

Is there a web application that allows me to upload such data and then generate a nice heat map of it (say, where the "hotter" parts correspond to the higher numbers in the second column)?

One special case of this could be if I uploaded a list of weather stations and the average annual temperature recorded at that station, so hotter parts of the country would appear in red and colder parts would appear in blue.

Answer 1

You can upload data from a speadsheet to Google Fusion Tables and there's examples to get started. Also try searching the google group for specific tips on creating a heat map.

Answer 2

Microsoft has basically the same thing as Google...

http://msdn.microsoft.com/en-us/library/cc514452.aspx

Answer 3

I use something that doesn't create heatmaps, but instead just drops pins on a google map for CSV data. it's something that I built for personal use, let me know if you'd like a link.