Google Visualization API released

Google introduced the latest Ajax API: Google Visualization API, a new API designed for visualizing structured data. This complements the Google Chart API, which has lifted its limits on the number of calls for charts.

The API adds the ability to send queries to data sources and process the response. The first data source that already supports this API is Google Spreadsheets. A set of visualization gadgets that use this API are also launched. Users can use this API to create their own data visualization that is decoupled from data source implementation.

Here is an example of an animated bubble chart that uses data from a spreadsheet. This cool chart type was developed by the Google GapMinder team.

Check out this large visualization gallery. 

For more information, see the API documentation.