I was reminded today about Chartle, a free, no registration required Web 2.0 app that allows users to create a wide variety of diagrams, maps and charts, some with unique interactive features. Objects created with Chartle can be shared or embedded in blogs or wikis. It has a many features, some of which are quite complicated. It is also a very young Beta product, and only works in Firefox 3.x on PCs and Macs. With those caveats in mind however, it is an intriguing tool with enough going for it to keep it on any tech savvy educator’s radar.