Edward Tufte coined the term Sparkline to mean "intense word size graphics" for use in information display. To find out more, visit his site.
This page is a simple interface to my own basic PHP sparkline implementation. Really it's just a quick way to generate a graph based on some comma-separated values; I currently use it for quick glance traffic monitoring on my web log. You can see the PHP source here. [provided AS IS — feel free to do what you like with it]
Your new sparkline should appear here:
NOTE: Since this is a sample/test page the URI of this image may change in the future, so if you want to keep it you should save it as a new image.