Do You Use Visualization in Production?

I'm speaking at VizSec 2010 next month. My topic is Is Security Visualization Useful in Production? I'd like to know if YOU are using visualization in production. What works? What doesn't? What do you need but don't have?

I'll select the most interesting responses and integrate them into my presentation. Feel free to comment here or email richard at taosecurity dot com. Please be sure to include an IMAGE so we can see the visualization you are describing! Respond no later than Monday 30 August. Thank you.
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