Here you have a new roundup about a bunch of great tools for making charts and graphs.
You can choose between web generators, flash, javascript libraries, Silverlight or PHP classes.
At the end of the post you find also 3 tutorials to make pure css bar graphs and another one for Adobe Illustrator.
JS Charts (JavaScript based chart generator)
Protovis (visualization toolkit for JavaScript)
Visifire (open source data visualization components powered by Silverlight & WPF)
pChart (PHP class oriented framework)
Ejschart (Javascript)
XML/SWF Charts
Chronoscope (open source)
Open Flash Chart 2
FusionCharts Free
JFreeChart (flash)
Flare (ActionScript library)
Google Chart API
Google Chart Generator
Timeplot (DHTML-based AJAXy widget)
CSS Chart Generator (web on-the-fly generator for bar charts)
YUI Library
PlotKit (Chart and Graph Plotting Library for Javascript)
Flotr (javascript plotting library based on the Prototype Javascript Framework)
Raphaël (JavaScript library)
Protochart (Open source library - Prototype and Canvas)
Bluff (JavaScript port of the Gruff graphing library for Ruby)
Pure Css Line Graph
Pure Css Data Chart
CSS Stacked Bar Graphs
Illustrator tutorial
