Global Web 2.0 Censorship:
Sami Ben Gharbia writes: "In order to shed light on the battle being waged between state censorship and anti-censorship groups, I've created the Access Denied Map, an interactive Google Maps mashup that provides information about the censorship efforts targeting various online social networking communities and web-based applications. Each marker on the map highlights the situation in a specific country that is barring access to major websites. Clicking on the marker opens an information window containing text, images or video describing the nature of censorship and the efforts to combat it."
Read more about this mashup on Sami Ben Gharbia's blog post:
Access Denied Map: Mapping Web 2.0 Censorship
Web 2.0 Google Maps Mashups