I crashed the Utah PHP User Group. The meeting had an excellent presentation on using the PHP GD-Library from the New York PHP User Group. By showing some rather detailed graphs, the group answered my questions about how well the GD library handles large quantities of data used in graphs. I was most impressed with the demonstration of how to manipulate graphics by changing the color pallette. I've been wanting an interactive map of the US, and here is one I can steal.
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