QuickChart - QuickChart is easy to use and open-source open API that makes it easy to generate chart images.
Geckoboard - Get to know Geckoboard: Instant access to your most important metrics displayed on a real-time dashboard.
Google Charts - Interactive charts for browsers and mobile devices.
Klipfolio - Klipfolio is an online dashboard platform for building powerful real-time business dashboards for your team or your clients.
Image Charts - No more pain rendering charts server-side.
Databox - Databox is Business Analytics platform that helps companies deliver insights and analytics anytime and anywhere.