I put this deck together to explore SlideShare in more depth. Of course, meaningful content is always more helpful so this slideshow has a number of excellent tools for creating dynamic graphs without using Adobe Flash which is not supported by some devices.
The content from the slideshow, should anyone want to check out some of these really awesome tools.
Generate Images Dynamically
Creating an image dynamically from your source data on the fly as the browser requests it. Lacking in interactivity but supported by any device that supports images.
HTML5 Canvas Tag
Not natively supported by IE, although support can be enabled through use of the ExplorerCanvas project. http://code.google.com/p/explorercanvas
SVG (Scaleable Vector Graphics)
Allows for rich user experiences while remaining lightweight. Native support in IE 9, plugins available for 8 and lower. Supported by all other major browser lines.
Create Images Dynamically
Hosted: Google Chart API http://code.google.com/apis/charttools
PHP: GraPHPite http://graphpite.sourceforge.net
PHP: pChart http://pchart.sourceforge.net
Python: Pychart http://home.gna.org/pychart
Java: EasyCharts http://www.objectplanet.com/easycharts
Java: ElegantJ Charts http://www.elegantjcharts.com
Java: JFreeChart http://www.jfree.org/jfreechart
.NET: Microsoft .net Chart Controls http://www.microsoft.com/downloads/details.aspx?FamilyID=130f7986-bf49-4fe5-9ca8-910ae6ea442c
.NET: .net Charting http://www.dotnetcharting.com
Silverlight: Microsoft Silverlight Toolkit http://www.silverlight.net
HTML5 Canvas: Some of these support SVG too
JS Charts http://www.jscharts.com
Dojo Toolkit http://www.dojotoolkit.org
Canvas 3D Graph http://dragan.yourtree.org/code/canvas-3d-graph
TufteGraph (jQuery Based) http://xaviershay.github.com/tufte-graph
Canvas Pie Chart with Tooltips (Mootools Based) http://blog.greghoustondesign.com/canvas-pie-chart-with-tooltips
MooChart (Mootools Based) http://moochart.coneri.se
InfoVis Toolkit http://thejit.org
Graphico (Prototype + Raphael Based) http://grafico.kilianvalkhof.com