APB links to a long and interesting article named "Googling Security: Mapping, Directions, and Imagery". From the article: "So what is the harm in using these services? Well, it turns out, a lot. You face significant risks from both your use of these services and the content they contain. This article analyzes the information you disclose when using mapping and imagery services, including how your use of these tools discloses locations of your home, employer, family and friends, travel plans, and strategic intentions, and discusses how data mining can easily link seemingly disparate groups of people based on their interest in common locations. It also covers the risks inherent in the content itself, including camera-equipped cars capturing continuous streams of high-quality street-level photographs, collaborative analysis of satellite imagery, and your inability to trust the veracity of the images themselves." Several previous related stories copied below.
Read more of this story at Slashgeo.
To my astonishment, I received the 
This weekend I finished reviewing 
Showing a *really* cool styling demo tool, which lets you put in code, run it, and executes the JS and creates a map. Totally need to get that into the website.
Want a quick feel for how bad the credit crisis is? Compare how much banks will accept in interest on Treasury bills (basically a risk-free investment) to what they expect to receive in interest on loans to other banks (there is a non-zero risk that the bank might default, say, declare bankruptcy). In normal times, banks don't go out of business (very often) so the difference is very small. In exceptional times (like now) nobody knows who is going to be in business tomorrow, and the difference is very large. 
However, moving geometry from PostGIS into GEOS format incurs a cost. And not all predicate algorithms are hard. Point-in-polygon tests, for example, are relatively easy.
