Tabletop.js : A Google Spreadsheets data source for your app

Jonathan Soma has given un a lovely little tool for building data-driven applications backed with Google Spreadsheets.

Here's an awesome example:

http://www.motherjones.com/politics/2012/09/charts-47-percent-romney-tax-data

"Tabletop.js takes a Google Spreadsheet and makes it easily accessible through JavaScript. With zero dependencies!"

https://github.com/jsoma/tabletop