Juna IT Poll - You can use WordPress Juna IT Poll for explaining what your users think about your web-page or a new page and or about any question. -
A simple, easy to use and quite powerful chart tool to create, manage and embed interactive charts into your WordPress posts and pages.
Easily integrate google charts, diagrams and tables based on your Google Spreadsheets.
ChartBoot for WordPress Plugin allows to create, edit and embed Google Charts in WordPress Posts and/or Pages.