Charts Factory - Create simple charts super fast and for free!
FnordMetric - Create charts and dashboards from SQL
ZingChart - ZingChart is a fast, modern, powerful JavaScript charting library for building animated, interactive charts and graphs. Bring on the big data!
Mountain - Living seamlessly in the menu bar Mountain allows you to manage volumes with ease.
Google Charts - Interactive charts for browsers and mobile devices.
Charte - Free online interactive charts for non-techies