I recently presented this paper at the 2008 ESRI User's Conference in San Diego. It's about much of what I've discussed on this blog recently, with some added technical details. Here are the slides from the presentation, in case you missed it.
[[ Note that the slides were originally generated in PowerPoint. I've uploaded them to Google for publication on the web. Some of the formating is a bit off, but they should get the point across. ]]