I’m rather excited about this new (in beta) tool from Google.
Fusion Tables allow you to visualize large sets of data in a variety of ways including interactive maps, charts, etc.
Here’s an example showing ‘Cholera Cases and Deaths, 2000-2008’, focused on Africa, with data coming from this spreadsheet.
The source data looks like this:
Here’s how I customized the view:
You can choose other ways to visualize the data as well.
There seems to be a lot of potential for embeddable gadgets with data coming from an updateable Google doc. Very neat!
Read more about Fusion Charts on the Google Operating System (unofficial) blog here.