HEATKEYS

RGraph is a Javascript charts and graphs library that can plot over 20 different types of charts and gauges. Bar charts, Line charts, Pie charts etc are all catered for and the charts are created inside the browser with Javascript which can reduce se...

Open source HTML5 charts using the canvas tag. Chart.js is an easy way to include animated graphs on your website.

Peltier Technical Services develops commercial and custom Excel add-ins for data analysis, charting, and reporting. This site has extensive tutorials and free add-ins.

ChemAxon is a company for software development. Programs, Java applets and other Java tools for chemistry, client-server applications, chemical databases.

jQueryRain : Top & Best jquery plugins, tutorials, cool effects with jquery examples , demo, demos for beginners,designers,developers.

The Weather Channel and weather.com provide a national and local weather forecast for cities, as well as weather radar, report and hurricane coverage.

Free, fully customizable animated, 3D or 2D flash charts - line, area, pie, donut (doughnut), bar, column, scatter, bubble, xy, radar, polar, spider, logarithmic scale charts, time plot

Noupe is a curious design blog that is always looking for new and interesting stuff on design, jquery, photoshop and more.

Opensource, Free and Useful Online Resources for Designers and Developers