Google announced, expanding the capabilities of the Google Visualization API by enabling developers to display data from any data source connected to the web (any database, Excel spreadsheet, etc.), not just from Google Spreadsheets. From pivot tables and heat graphs to motion charts and timelines, the Google Visualization Gallery holds a growing set of 40+ visualizations that appeal to a multitude of businesses.
To make it even easier for developers to get started, Google documented an open-source Python library that enables any Python developer to quickly start using the API.
Salesforce.com has made available some tools to make the Google Visualization API even easier to use.
More info: Google Blog